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Senbill H, Karawia D, Zeb J, Alyami NM, Almeer R, Rahman S, Sparagano O, Baruah A. Molecular screening and genetic diversity of tick-borne pathogens associated with dogs and livestock ticks in Egypt. PLoS Negl Trop Dis 2024; 18:e0012185. [PMID: 38837987 DOI: 10.1371/journal.pntd.0012185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 05/02/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND The Middle East and North Africa (MENA) offer optimal climatic conditions for tick reproduction and dispersal. Research on tick-borne pathogens in this region is scarce. Despite recent advances in the characterization and taxonomic explanation of various tick-borne illnesses affecting animals in Egypt, no comprehensive examination of TBP (tick-borne pathogen) statuses has been performed. Therefore, the present study aims to detect the prevalence of pathogens harbored by ticks in Egypt. METHODOLOGY/PRINCIPAL FINDINGS A four-year PCR-based study was conducted to detect a wide range of tick-borne pathogens (TBPs) harbored by three economically important tick species in Egypt. Approximately 86.7% (902/1,040) of the investigated Hyalomma dromedarii ticks from camels were found positive with Candidatus Anaplasma camelii (18.8%), Ehrlichia ruminantium (16.5%), Rickettsia africae (12.6%), Theileria annulata (11.9%), Mycoplasma arginini (9.9%), Borrelia burgdorferi (7.7%), Spiroplasma-like endosymbiont (4.0%), Hepatozoon canis (2.4%), Coxiella burnetii (1.6%) and Leishmania infantum (1.3%). Double co-infections were recorded in 3.0% (27/902) of Hy. dromedarii ticks, triple co-infections (simultaneous infection of the tick by three pathogen species) were found in 9.6% (87/902) of Hy. dromedarii ticks, whereas multiple co-infections (simultaneous infection of the tick by ≥ four pathogen species) comprised 12% (108/902). Out of 1,435 investigated Rhipicephalus rutilus ticks collected from dogs and sheep, 816 (56.9%) ticks harbored Babesia canis vogeli (17.1%), Rickettsia conorii (16.2%), Ehrlichia canis (15.4%), H. canis (13.6%), Bo. burgdorferi (9.7%), L. infantum (8.4%), C. burnetii (7.3%) and Trypanosoma evansi (6.6%) in dogs, and 242 (16.9%) ticks harbored Theileria lestoquardi (21.6%), Theileria ovis (20.0%) and Eh. ruminantium (0.3%) in sheep. Double, triple, and multiple co-infections represented 11% (90/816), 7.6% (62/816), and 10.3% (84/816), respectively in Rh. rutilus from dogs, whereas double and triple co-infections represented 30.2% (73/242) and 2.1% (5/242), respectively in Rh. rutilus from sheep. Approximately 92.5% (1,355/1,465) of Rhipicephalus annulatus ticks of cattle carried a burden of Anaplasma marginale (21.3%), Babesia bigemina (18.2%), Babesia bovis (14.0%), Borrelia theleri (12.8%), R. africae (12.4%), Th. annulata (8.7%), Bo. burgdorferi (2.7%), and Eh. ruminantium (2.5%). Double, triple, and multiple co-infections represented 1.8% (25/1,355), 11.5% (156/1,355), and 12.9% (175/1,355), respectively. The detected pathogens' sequences had 98.76-100% similarity to the available database with genetic divergence ranged between 0.0001 to 0.0009% to closest sequences from other African, Asian, and European countries. Phylogenetic analysis revealed close similarities between the detected pathogens and other isolates mostly from African and Asian countries. CONCLUSIONS/SIGNIFICANCE Continuous PCR-detection of pathogens transmitted by ticks is necessary to overcome the consequences of these infection to the hosts. More restrictions should be applied from the Egyptian authorities on animal importations to limit the emergence and re-emergence of tick-borne pathogens in the country. This is the first in-depth investigation of TBPs in Egypt.
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Affiliation(s)
- Haytham Senbill
- Department of Entomology, Faculty of Agriculture, Assam Agricultural University, Jorhat, Assam, India
- Department of Applied Entomology & Zoology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Donia Karawia
- Department of Pesticide Chemistry & Technology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Jehan Zeb
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong, China
- Department of Zoology, Govt. Ghazi Umara Khan Degree College Samarbagh, Higher Education Department, Khyber Pakhtunkhwa, Pakistan
| | - Nouf M Alyami
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rafa Almeer
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sahidur Rahman
- Department of Entomology, Faculty of Agriculture, Assam Agricultural University, Jorhat, Assam, India
| | - Olivier Sparagano
- Agricultural Sciences and Practice, Royal Agricultural University (RAU), Cirencester, United Kingdom
| | - Aiswarya Baruah
- Department of Agricultural Biotechnology, Faculty of Agriculture, Assam Agricultural University, Jorhat, Assam, India
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Blažeková V, Stanko M, Sprong H, Kohl R, Zubriková D, Vargová L, Bona M, Miklisová D, Víchová B. Ixodiphagus hookeri (Hymenoptera: Encyrtidae) and Tick-Borne Pathogens in Ticks with Sympatric Occurrence (and Different Activities) in the Slovak Karst National Park (Slovakia), Central Europe. Pathogens 2024; 13:385. [PMID: 38787237 PMCID: PMC11123704 DOI: 10.3390/pathogens13050385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/27/2024] [Accepted: 05/04/2024] [Indexed: 05/25/2024] Open
Abstract
Ticks are involved in the transmission a plethora of pathogens. To effectively control ticks and mitigate the risks associated with tick-borne diseases, it is important to implement tick control measures. These may include the use of acaricides as well as the development and implementation of an alternative, environmentally friendly tick management program that include practices such as habitat modification or establishing biological control. Ixodiphagus hookeri Howard is a tick-specific parasitoid wasp that predates on several species of ixodid ticks and could contribute to the control of the tick population. This work aimed to detect the presence of parasitoid wasps in ticks (Ixodidae) using genetic approaches. Several tick species of the genera Ixodes, Haemaphysalis, and Dermacentor, with a sympatric occurrence in the Slovak Karst National Park in southeastern Slovakia, were screened for the presence of wasps of the genus Ixodiphagus. The DNA of the parasitoids was detected in four tick species from three genera. This work presents the first molecular detection of parasitoids in two Dermacentor tick species, as well as the first molecular identification of Ixodiphagus wasps in Ixodes ricinus and Haemaphysalis concinna ticks from the Karst area. In the given area, it was observed that I. ricinus and H. concinna ticks are hyper-parasitized by wasps. Moreover, it was observed that wasps here can parasitize several tick species, some of which are of less significance for human and animal health (as they transmit fewer pathogens).
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Affiliation(s)
- Veronika Blažeková
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
- Department of Epizootiology, Parasitology and Protection of One Health, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 040 81 Košice, Slovakia
| | - Michal Stanko
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
- Institute of Zoology Slovak Academy of Sciences, Dúbravská cesta 9, 845 06 Bratislava, Slovakia
| | - Hein Sprong
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, The Netherlands; (H.S.); (R.K.)
| | - Robert Kohl
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, The Netherlands; (H.S.); (R.K.)
| | - Dana Zubriková
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
| | - Lucia Vargová
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
| | - Martin Bona
- Department of Medical Physiology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11 Košice, Slovakia;
| | - Dana Miklisová
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
| | - Bronislava Víchová
- Laboratory of Molecular Ecology of Vectors, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovakia; (V.B.); (M.S.); (D.Z.); (L.V.); (D.M.)
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Haque MS, Islam MS, You MJ. Effect of Silencing subolesin and enolase impairs gene expression, engorgement and reproduction in Haemaphysalis longicornis (Acari: Ixodidae) ticks. J Vet Sci 2024; 25:e43. [PMID: 38834512 PMCID: PMC11156603 DOI: 10.4142/jvs.24039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/09/2024] [Accepted: 05/04/2024] [Indexed: 06/06/2024] Open
Abstract
IMPORTANCE Haemaphysalis longicornis is an obligate blood-sucking ectoparasite that has gained attention due its role of transmitting medically and veterinary significant pathogens and it is the most common tick species in Republic of Korea. The preferred strategy for controlling ticks is a multi-antigenic vaccination. Testing the efficiency of a combination antigen is a promising method for creating a tick vaccine. OBJECTIVE The aim of the current research was to analyze the role of subolesin and enolase in feeding and reproduction of H. longicornis by gene silencing. METHODS In this study, we used RNA interference to silence salivary enolase and subolesin in H. longicornis. Unfed female ticks injected with double-stranded RNA targeting subolesin and enolase were attached and fed normally on the rabbit's ear. Real-time polymerase chain reaction was used to confirm the extent of knockdown. RESULTS Ticks in the subolesin or enolase dsRNA groups showed knockdown rates of 80% and 60% respectively. Ticks in the combination dsRNA (subolesin and enolase) group showed an 80% knockdown. Knockdown of subolesin and enolase resulted in significant depletion in feeding, blood engorgement weight, attachment rate, and egg laying. Silencing of both resulted in a significant (p < 0.05) reduction in tick engorgement, egg laying, egg hatching (15%), and reproduction. CONCLUSIONS AND RELEVANCE Our results suggest that subolesin and enolase are an exciting target for future tick control strategies.
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Affiliation(s)
- Md Samiul Haque
- Laboratory of Veterinary Parasitology, College of Veterinary Medicine and Bio-Safety Research Centre, Jeonbuk National University, Iksan 54596, Korea
| | - Mohammad Saiful Islam
- Department of Medicine Surgery & Obstetrics, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Myung-Jo You
- Laboratory of Veterinary Parasitology, College of Veterinary Medicine and Bio-Safety Research Centre, Jeonbuk National University, Iksan 54596, Korea.
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Boulanger N, Aran D, Maul A, Camara BI, Barthel C, Zaffino M, Lett MC, Schnitzler A, Bauda P. Multiple factors affecting Ixodes ricinus ticks and associated pathogens in European temperate ecosystems (northeastern France). Sci Rep 2024; 14:9391. [PMID: 38658696 DOI: 10.1038/s41598-024-59867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 04/16/2024] [Indexed: 04/26/2024] Open
Abstract
In Europe, the main vector of tick-borne zoonoses is Ixodes ricinus, which has three life stages. During their development cycle, ticks take three separate blood meals from a wide variety of vertebrate hosts, during which they can acquire and transmit human pathogens such as Borrelia burgdorferi sensu lato, the causative agent of Lyme borreliosis. In this study conducted in Northeastern France, we studied the importance of soil type, land use, forest stand type, and temporal dynamics on the abundance of ticks and their associated pathogens. Negative binomial regression modeling of the results indicated that limestone-based soils were more favorable to ticks than sandstone-based soils. The highest tick abundance was observed in forests, particularly among coniferous and mixed stands. We identified an effect of habitat time dynamics in forests and in wetlands: recent forests and current wetlands supported more ticks than stable forests and former wetlands, respectively. We observed a close association between tick abundance and the abundance of Cervidae, Leporidae, and birds. The tick-borne pathogens responsible for Lyme borreliosis, anaplasmosis, and hard tick relapsing fever showed specific habitat preferences and associations with specific animal families. Machine learning algorithms identified soil related variables as the best predictors of tick and pathogen abundance.
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Affiliation(s)
- Nathalie Boulanger
- Université de Strasbourg UR3073: PHAVI: Groupe Borrelia, 67000, Strasbourg, France.
- Centre National de Référence Borrelia, Centre Hospitalier Régional Universitaire, Strasbourg, France.
| | - Delphine Aran
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | - Armand Maul
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | - Baba Issa Camara
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
- Université de Lorraine, LCOMS EA 7306, 57073, Metz, France
| | - Cathy Barthel
- Université de Strasbourg UR3073: PHAVI: Groupe Borrelia, 67000, Strasbourg, France
| | - Marie Zaffino
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | | | - Annick Schnitzler
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
- Museum National d'Histoire Naturelle, UMR 7194 HNHP CNRS/MNHN/UPVD, 75000, Paris, France
| | - Pascale Bauda
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France.
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Boulanger N. [Anthropization and tick-borne diseases: the example of Lyme borreliosis]. C R Biol 2024; 346:35-41. [PMID: 37655860 DOI: 10.5802/crbiol.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/10/2023] [Indexed: 09/02/2023]
Abstract
Ticks and tick-borne diseases are on the rise throughout the world. The reasons are multifactorial but all associated with human practices, including climate change and socio-economic and eco systemic changes. In the northern hemisphere, Lyme borreliosis and its vector, the tick belonging to the Ixodes ricinus complex, are particularly studied. Changes in forestry and the expansion of certain wild ungulates since the Second World War could explain the increasing presence of this tick in our environment. As it is likely to transmit other microorganisms potentially pathogenic to humans, an integrated multidisciplinary approach to identify human practices promoting its expansion is critical to control the (re)emergence of infectious diseases. Other ticks also benefit from the same anthropised context to increase their numbers in the environment.
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Singh P, Vydyam P, Fang T, Estrada K, Gonzalez LM, Grande R, Kumar M, Chakravarty S, Berry V, Ranwez V, Carcy B, Depoix D, Sánchez S, Cornillot E, Abel S, Ciampossin L, Lenz T, Harb O, Sanchez-Flores A, Montero E, Le Roch KG, Lonardi S, Ben Mamoun C. Multiomics analysis reveals B. MO1 as a distinct Babesia species and provides insights into its evolution and virulence. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.17.575932. [PMID: 38293033 PMCID: PMC10827214 DOI: 10.1101/2024.01.17.575932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Babesiosis, caused by protozoan parasites of the genus Babesia , is an emerging tick-borne disease of significance for both human and animal health. Babesia parasites infect erythrocytes of vertebrate hosts where they develop and multiply rapidly to cause the pathological symptoms associated with the disease. The identification of various Babesia species underscores the ongoing risk of new zoonotic pathogens capable of infecting humans, a concern amplified by anthropogenic activities and environmental shifts impacting the distribution and transmission dynamics of parasites, their vectors, and reservoir hosts. One such species, Babesia MO1, previously implicated in severe cases of human babesiosis in the midwestern United States, was initially considered closely related to B. divergens , the predominant agent of human babesiosis in Europe. Yet, uncertainties persist regarding whether these pathogens represent distinct variants of the same species or are entirely separate species. We show that although both B. MO1 and B. divergens share similar genome sizes, comprising three nuclear chromosomes, one linear mitochondrial chromosome, and one circular apicoplast chromosome, major differences exist in terms of genomic sequence divergence, gene functions, transcription profiles, replication rates and susceptibility to antiparasitic drugs. Furthermore, both pathogens have evolved distinct classes of multigene families, crucial for their pathogenicity and adaptation to specific mammalian hosts. Leveraging genomic information for B. MO1, B. divergens , and other members of the Babesiidae family within Apicomplexa provides valuable insights into the evolution, diversity, and virulence of these parasites. This knowledge serves as a critical tool in preemptively addressing the emergence and rapid transmission of more virulent strains.
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Ma R, Li C, Gao A, Jiang N, Feng X, Li J, Hu W. Evidence-practice gap analysis in the role of tick in brucellosis transmission: a scoping review. Infect Dis Poverty 2024; 13:3. [PMID: 38191468 PMCID: PMC10773131 DOI: 10.1186/s40249-023-01170-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 12/20/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND Brucellosis is a zoonotic affliction instigated by bacteria belonging to the genus Brucella and is characterized by a diverse range of pervasiveness, multiple transmission routes, and serious hazards. It is imperative to amalgamate the current knowledge and identify gaps pertaining to the role of ticks in brucellosis transmission. METHODS We systematically searched China National Knowledge Infrastructure (CNKI), WanFang, Google Scholar, and PubMed on the topic published until April 23, 2022. The procedure was performed in accordance with the Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines. The selected articles were categorized across three major topic areas, and the potential data was extracted to describe evidence-practice gaps by two reviewers. RESULTS The search identified 83 eligible studies for the final analyses. The results highlighted the potential capacity of ticks in brucellosis transmission as evidenced by the detection of Brucella in 16 different tick species. The pooled overall prevalence of Brucella in ticks was 33.87% (range: 0.00-87.80%). The review also revealed the capability of Brucella to circulate in parasitic ticks' different developmental stages, thus posing a potential threat to animal and human health. Empirical evidence from in vitro rodent infection experiments has revealed that ticks possess the capability to transmit Brucella to uninfected animals (range: 45.00-80.00%). Moreover, significant epidemiological associations have been found between the occurrence of brucellosis in animals and tick control in rangelands, which further suggests that ticks may serve as potential vectors for brucellosis transmission in ruminants. Notably, a mere three cases of human brucellosis resulting from potential tick bites were identified in search of global clinical case reports from 1963 to 2019. CONCLUSIONS It is imperative to improve the techniques used to identify Brucella in ticks, particularly by developing a novel, efficient, precise approach that can be applied in a field setting. Furthermore, due to the lack of adequate evidence of tick-borne brucellosis, it is essential to integrate various disciplines, including experimental animal science, epidemiology, molecular genetics, and others, to better understand the efficacy of tick-borne brucellosis. By amalgamating multiple disciplines, we can enhance our comprehension and proficiency in tackling tick-borne brucellosis.
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Affiliation(s)
- Rui Ma
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Chunfu Li
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Ai Gao
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Na Jiang
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Xinyu Feng
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, 20025, China.
- One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 20025, China.
| | - Jian Li
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
- Basic Medical College, Guangxi University of Chinese Medical, Nanning, 530005, Guangxi, China.
| | - Wei Hu
- School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
- Basic Medical College, Guangxi University of Chinese Medical, Nanning, 530005, Guangxi, China.
- Department of Infectious Diseases, Huashan Hospital, State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438, China.
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Chavarría-Bencomo IV, Nevárez-Moorillón GV, Espino-Solís GP, Adame-Gallegos JR. Antibiotic resistance in tick-borne bacteria: A One Health approach perspective. J Infect Public Health 2023; 16 Suppl 1:153-162. [PMID: 37945496 DOI: 10.1016/j.jiph.2023.10.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
The emergence and re-emergence of tick-borne bacteria (TBB) as a public health problem raises the uncertainty of antibiotic resistance in these pathogens, which could be dispersed to other pathogens. The impact of global warming has led to the emergence of pathogenic TBB in areas where they were not previously present and is another risk that must be taken into account under the One Health guides. This review aimed to analyze the existing information regarding antibiotic-resistant TBB and antibiotic-resistance genes (ARG) present in the tick microbiome, considering the potential to be transmitted to pathogenic microorganisms. Several Ehrlichia species have been reported to exhibit natural resistance to fluoroquinolones and typhus group Rickettsiae are naturally susceptible to erythromycin. TBB have a lower risk of acquiring ARG due to their natural habitat, but there is still a probability of acquiring them; furthermore, studies of these pathogens are limited. Pathogenic and commensal bacteria coexist within the tick microbiome along with ARGs for antibiotic deactivation, cellular protection, and efflux pumps; these ARGs confer resistance to antibiotics such as aminoglycosides, beta-lactamase, diaminopyrimidines, fluoroquinolones, glycopeptides, sulfonamides, and tetracyclines. Although with low probability, TBB can be a reservoir of ARGs.
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Affiliation(s)
- Inés Valeria Chavarría-Bencomo
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
| | - Guadalupe Virginia Nevárez-Moorillón
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico.
| | - Gerardo Pavel Espino-Solís
- Laboratorio Nacional de Citometría de Flujo. Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
| | - Jaime Raúl Adame-Gallegos
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
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Vaz-Rodrigues R, Mazuecos L, Villar M, Contreras M, Artigas-Jerónimo S, González-García A, Gortázar C, de la Fuente J. Multi-omics analysis of zebrafish response to tick saliva reveals biological processes associated with alpha-Gal syndrome. Biomed Pharmacother 2023; 168:115829. [PMID: 37922649 DOI: 10.1016/j.biopha.2023.115829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/17/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023] Open
Abstract
The alpha-Gal syndrome (AGS) is a tick-borne allergy. A multi-omics approach was used to determine the effect of tick saliva and mammalian meat consumption on zebrafish gut transcriptome and proteome. Bioinformatics analysis using R software was focused on significant biological and metabolic pathway changes associated with AGS. Ortholog mapping identified highly concordant human ortholog genes for the detection of disease-enriched pathways. Tick saliva treatment increased zebrafish mortality, incidence of hemorrhagic type allergic reactions and changes in behavior and feeding patterns. Transcriptomics analysis showed downregulation of biological and metabolic pathways correlated with anti-alpha-Gal IgE and allergic reactions to tick saliva affecting blood circulation, cardiac and vascular smooth muscle contraction, behavior and sensory perception. Disease enrichment analysis revealed downregulated orthologous genes associated with human disorders affecting nervous, musculoskeletal, and cardiovascular systems. Proteomics analysis revealed suppression of pathways associated with immune system production of reactive oxygen species and cardiac muscle contraction. Underrepresented proteins were mainly linked to nervous and metabolic human disorders. Multi-omics data revealed inhibition of pathways associated with adrenergic signaling in cardiomyocytes, and heart and muscle contraction. Results identify tick saliva-related biological pathways supporting multisystemic organ involvement and linking α-Gal sensitization with other illnesses for the identification of potential disease biomarkers.
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Affiliation(s)
- Rita Vaz-Rodrigues
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Lorena Mazuecos
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Margarita Villar
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain; Biochemistry Section, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Marinela Contreras
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Sara Artigas-Jerónimo
- Biochemistry Section, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Almudena González-García
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Christian Gortázar
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain; Department of Veterinary Pathobiology, Centre for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
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Boulanger N, Insonere JLM, Van Blerk S, Barthel C, Serres C, Rais O, Roulet A, Servant F, Duron O, Lelouvier B. Cross-alteration of murine skin and tick microbiome concomitant with pathogen transmission after Ixodes ricinus bite. MICROBIOME 2023; 11:250. [PMID: 37952001 PMCID: PMC10638774 DOI: 10.1186/s40168-023-01696-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Ticks are major vectors of diseases affecting humans such as Lyme disease or domestic animals such as anaplasmosis. Cross-alteration of the vertebrate host skin microbiome and the tick microbiome may be essential during the process of tick feeding and for the mechanism of pathogen transmission. However, it has been poorly investigated. METHODS We used mice bitten by field-collected ticks (nymphs and adult ticks) in different experimental conditions to investigate, by 16S rRNA gene metabarcoding, the impact of blood feeding on both the mouse skin microbiome and the tick microbiome. We also investigated by PCR and 16S rRNA gene metabarcoding, the diversity of microorganisms transmitted to the host during the process of tick bite at the skin interface and the dissemination of the pathogen in host tissues (blood, heart, and spleen). RESULTS Most of the commensal bacteria present in the skin of control mice were replaced during the blood-feeding process by bacteria originating from the ticks. The microbiome of the ticks was also impacted by the blood feeding. Several pathogens including tick-borne pathogens (Borrelia/Borreliella, Anaplasma, Neoehrlichia, Rickettsia) and opportunistic bacteria (Williamsia) were transmitted to the skin microbiome and some of them disseminated to the blood or spleen of the mice. In the different experiments of this study, skin microbiome alteration and Borrelia/Borreliella transmission were different depending on the tick stages (nymphs or adult female ticks). CONCLUSIONS Host skin microbiome at the bite site was deeply impacted by the tick bite, to an extent which suggests a role in the tick feeding, in the pathogen transmission, and a potentially important impact on the skin physiopathology. The diversified taxonomic profiles of the tick microbiome were also modified by the blood feeding. Video Abstract.
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Affiliation(s)
- Nathalie Boulanger
- UR7290: Virulence bactérienne précoce: groupe Borrelia, FMTS, University of Strasbourg, Strasbourg, France.
| | | | | | - Cathy Barthel
- UR7290: Virulence bactérienne précoce: groupe Borrelia, FMTS, University of Strasbourg, Strasbourg, France
| | - Céline Serres
- Vaiomer, 516 rue Pierre et Marie Curie, 31670, Labège, France
| | - Olivier Rais
- Laboratoire d'écologie et d'épidémiologie parasitaires Institut de Biologie, University of Neuchatel, 2000, Neuchâtel, Switzerland
| | - Alain Roulet
- Vaiomer, 516 rue Pierre et Marie Curie, 31670, Labège, France
| | | | - Olivier Duron
- Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS), Institut pour la Recherche et le Développement (IRD), Université de Montpellier (UM), 911 Avenue Agropolis, 34394, Montpellier, France
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Yılmaz S, İba Yilmaz S, Alay H, Koşan Z, Eren Z. Temporal tendency, seasonality and relationship with climatic factors of Crimean-Congo Hemorrhagic Fever cases (East of Turkey: 2012-2021). Heliyon 2023; 9:e19593. [PMID: 37681169 PMCID: PMC10480645 DOI: 10.1016/j.heliyon.2023.e19593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/12/2023] [Accepted: 08/28/2023] [Indexed: 09/09/2023] Open
Abstract
Crimean-Congo Hemorrhagic Fever continues to be an important public health problem by expanding its borders. To evaluate the temporal trend, seasonality, and relationship with the climatic factors of Crimean-Congo Hemorrhagic Fever. Study data included cases treated in two different tertiary healthcare institutions between 2012 and 2021. The demographic characteristics of the cases and the dates of admission to the hospital were determined, and they were matched with the average of the measurements (temperature, cumulative precipitation, relative humidity, wind speed) of two different meteorology stations in the study area. By calculating the crude incidence rates, the trend in years was investigated. Estimates were created by removing the incidence rates, seasonality, and trend components using the additive decomposition technique. The temporal relationship between incidence rates and climatic factors was evaluated with the help of the Autoregressive Distributed Lag Bound Test. Toda Yamamoto test was used for causality verification. The mean age of the cases (n = 974) included in the study was 47.6 ± 17.7 years, and the majority (57.3%) were in the group above 45 years of age. 56.6% of the cases were male and there was a male predominance in all age groups. Incidence rates ranged from 5.5 to 23.1/100,000 over the ten-year period and there was a significant upward trend (R2 = 0.691, p = 0.003). Cases of Crimean-Congo Hemorrhagic Fever that started in March, peaked in July and ended in October, showed a clear seasonality. A cointegration relationship was observed between case incidence rates and air temperature, cumulative precipitation, and relative humidity (p < 0.05 for all). Climatic factors can only indirectly affect the occurrence of Crimean-Congo Hemorrhagic Fever cases. However, climatic conditions that become progressively more favorable for vector ticks lead to the spread of the disease. The control measures to be taken should be prepared by considering the changing climatic conditions and prioritizing the risk groups. There is a need for information and awareness-raising studies about climate change and the growing dangers associated with it, also outside of endemic regions.
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Affiliation(s)
- Sinan Yılmaz
- Atatürk University Faculty of Medicine, Department of Public Health, Erzurum, Turkey
| | - Sibel İba Yilmaz
- Health Sciences University, Erzurum Faculty of Medicine, Clinic of Infectious Diseases, Erzurum, Turkey
| | - Handan Alay
- Atatürk University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Erzurum, Turkey
| | - Zahide Koşan
- Atatürk University Faculty of Medicine, Department of Public Health, Erzurum, Turkey
| | - Zeynep Eren
- Atatürk University, Faculty of Engineering, Department of Environmental Technologies, Erzurum, Turkey
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Ma R, Li C, Tian H, Zhang Y, Feng X, Li J, Hu W. The current distribution of tick species in Inner Mongolia and inferring potential suitability areas for dominant tick species based on the MaxEnt model. Parasit Vectors 2023; 16:286. [PMID: 37587525 PMCID: PMC10428659 DOI: 10.1186/s13071-023-05870-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/04/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Ticks are known to transmit a wide range of diseases, including those caused by bacteria, viruses, and protozoa. The expansion of tick habitats has been intensified in recent years due to various factors such as global warming, alterations in microclimate, and human activities. Consequently, the probability of human exposure to diseases transmitted by ticks has increased, leading to a higher degree of risk associated with such diseases. METHODS In this study, we conducted a comprehensive review of domestic and international literature databases to determine the current distribution of tick species in Inner Mongolia. Next, we employed the MaxEnt model to analyze vital climatic and environmental factors influencing dominant tick distribution. Subsequently, we predicted the potential suitability areas of these dominant tick species under the near current conditions and the BCC-CSM2.MR model SSP245 scenario for the future periods of 2021-2040, 2041-2060, 2061-2080, and 2081-2100. RESULTS Our study revealed the presence of 23 tick species from six genera in Inner Mongolia, including four dominant tick species (Dermacentor nuttalli, Ixodes persulcatus, Dermacentor silvarum, and Hyalomma asiaticum). Dermacentor nuttalli, D. silvarum, and I. persulcatus are predominantly found in regions such as Xilin Gol and Hulunbuir. Temperature seasonality (Bio4), elevation (elev), and precipitation seasonality (Bio15) were the primary variables impacting the distribution of three tick species. In contrast, H. asiaticum is mainly distributed in Alxa and Bayannur and demonstrates heightened sensitivity to precipitation and other climatic factors. Our modeling results suggested that the potential suitability areas of these tick species would experience fluctuations over the four future periods (2021-2040, 2041-2060, 2061-2080, and 2081-2100). Specifically, by 2081-2100, the centroid of suitable habitat for D. nuttalli, H. asiaticum, and I. persulcatus was predicted to shift westward, with new suitability areas emerging in regions such as Chifeng and Xilin Gol. The centroid of suitable habitat for H. asiaticum will move northeastward, and new suitability areas are likely to appear in areas such as Ordos and Bayannur. CONCLUSIONS This study provided a comprehensive overview of the tick species distribution patterns in Inner Mongolia. Our research has revealed a significant diversity of tick species in the region, exhibiting a wide distribution but with notable regional disparities. Our modeling results suggested that the dominant tick species' suitable habitats will significantly expand in the future compared to their existing distribution under the near current conditions. Temperature and precipitation are the primary variables influencing these shifts in distribution. These findings can provide a valuable reference for future research on tick distribution and the surveillance of tick-borne diseases in the region.
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Affiliation(s)
- Rui Ma
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Chunfu Li
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Haoqiang Tian
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Yan Zhang
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Xinyu Feng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology of China Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Joint Research Laboratory of Genetics and Ecology on Parasite-Host Interaction, Chinese Center for Disease Control and Prevention, Fudan University, Shanghai, 200025, China.
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, 20025, China.
- One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 20025, China.
| | - Jian Li
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
- Basic Medical College, Guangxi Traditional Chinese Medical University, Nanning, 530005, Guangxi, China.
| | - Wei Hu
- College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology of China Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Joint Research Laboratory of Genetics and Ecology on Parasite-Host Interaction, Chinese Center for Disease Control and Prevention, Fudan University, Shanghai, 200025, China.
- Department of Infectious Diseases, Huashan Hospital, State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438, China.
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Jaworski DC, Wang Y, Nair A, Liu H, Ganta RR. Multiple Ehrlichia chaffeensis genes critical for persistent infection in a vertebrate host are identified as nonessential for its growth in the tick vector; Amblyomma americanum. Front Cell Infect Microbiol 2023; 13:1220025. [PMID: 37457955 PMCID: PMC10349175 DOI: 10.3389/fcimb.2023.1220025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023] Open
Abstract
Ehrlichia chaffeensis is a tick-transmitted monocytic ehrlichiosis agent primarily causing the disease in people and dogs. We recently described the development and characterization of 55 random mutations in E. chaffeensis, which aided in defining the critical nature of many bacterial genes for its growth in a physiologically relevant canine infection model. In the current study, we tested 45 of the mutants for their infectivity ability to the pathogen's tick vector; Amblyomma americanum. Four mutations resulted in the pathogen's replication deficiency in the tick, similar to the vertebrate host. Mutations causing growth defects in both vertebrate and tick hosts included in genes coding for a predicted alpha/beta hydrolase, a putative dicarboxylate amino acid:cation symporter, a T4SS protein, and predicted membrane-bound proteins. Three mutations caused the bacterial defective growth only in the tick vector, which represented putative membrane proteins. Ten mutations causing no growth defect in the canine host similarly grew well in the tick vector. Mutations in 28 genes/genomic locations causing E. chaffeensis growth attenuation in the canine host were recognized as non-essential for its growth in the tick vector. The tick non-essential genes included genes coding for many metabolic pathway- and outer membrane-associated proteins. This study documents novel vector- and host-specific differences in E. chaffeensis for its functional gene requirements.
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Affiliation(s)
- Deborah C. Jaworski
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Ying Wang
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Arathy Nair
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Huitao Liu
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Roman R. Ganta
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
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Lu Y, Yang S, Zhao Q, Yuan C, Xia Q. Diversity analysis of the endosymbiotic bacterial community in field-collected Haemaphysalis ticks on the tropical Hainan Island, China. Folia Parasitol (Praha) 2023; 70:2023.012. [PMID: 37326358 DOI: 10.14411/fp.2023.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/18/2023] [Indexed: 06/17/2023]
Abstract
Ticks are important vectors of various pathogens that cause infectious diseases in humans. Endosymbiotic bacteria have been explored as targets for tick and tick-borne disease control. However, the tick bacterial community on Hainan Island, which is the largest tropical island in China and has an environment favourable to ticks, has not yet been studied. In this study, we surveyed the bacterial community of ticks collected from grass in one village in Haikou. A total of 20 ticks were morphologically and molecularly identified as Haemaphysalis spp. The tick bacterial 16S rRNA hypervariable region amplicon libraries were sequenced on an Illumina MiSeq platform. A total of 10 possible bacterial genera were detected, indicating a low-diversity bacterial community profile. The dominant bacterial genus, Massilia, accounted for 97.85% of the population. Some other bacterial genera, including Arsenophonus and Pseudomonas, have been reported to play a role in tick development and tick-borne pathogen transmission in other tick species. Overall, the study highlights the first descriptive understanding of the tick bacterial community on Hainan Island and provides a basis for deciphering the interactions between the tick microbiome and tick-borne pathogens.
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Affiliation(s)
- Yajun Lu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, China
| | - Siqi Yang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China
| | - Qiuyu Zhao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China
| | - Chuanfei Yuan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China
| | - Qianfeng Xia
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China
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Cao YY, Xiao SW, Yang F, Liu XY, Lu H, Zhang JC, Hu YH. Molecular characterization and immune efficacy of fructose-1,6-bisphosphate aldolase from Haemaphysalis longicornis (Acari: Ixodidae). Parasit Vectors 2023; 16:169. [PMID: 37231514 DOI: 10.1186/s13071-023-05794-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Ticks are obligate hematophagous ectoparasites that transmit a variety of pathogens to humans, wildlife and domestic animals. Vaccination is an effective and environmentally friendly method for tick control. Fructose-1,6-bisphosphate aldolase (FBA) is an important glycometabolism enzyme that is a candidate vaccine against parasites. However, the immune protection of FBA in ticks is unclear. METHODS AND RESULTS: The 1092-bp open reading frame (ORF) of FBA from Haemaphysalis longicornis (HlFBA), encoding a 363-amino acid protein, was cloned using PCR methodology. The prokaryotic expression vector pET32a(+)-HlFBA was constructed and transformed into cells of Escherichia coli BL21(DE3) strain for protein expression. The recombinant HlFBA protein (rHlFBA) was purified by affinity chromatography, and the western blot results suggested that the rHlFBA protein was immunogenic. RESULTS Results of the enzyme-linked immunosorbent assay showed that rabbits immunized with rHlFBA produced a humoral immune response specific to rHlFBA. A tick infestation trial indicated that, compared to the ticks in the histidine-tagged thioredoxin (Trx) group, the engorged tick weight and oviposition of female ticks and egg hatching rate of those in the rHlFBA group was reduced by 22.6%, 45.6% and 24.1%, respectively. Based on the cumulative effect of the these three parameters, the overall immune efficacy of rHlFBA was estimated to be 68.4%. CONCLUSIONS FBA is a candidate anti-tick vaccine that can significantly reduce the engorged tick weight, oviposition, and egg hatching rate. The use of enzymes involved in glucose metabolism is a new strategy in the development of anti-tick vaccines.
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Affiliation(s)
- Yuan-Yuan Cao
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Shu-Wen Xiao
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Feng Yang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Xiao-Ya Liu
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Hui Lu
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Jin-Cheng Zhang
- Shijiazhuang Post and Telecommunication Technical College, Shijiazhuang, 050021, China
| | - Yong-Hong Hu
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
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Abbas MN, Jmel MA, Mekki I, Dijkgraaf I, Kotsyfakis M. Recent Advances in Tick Antigen Discovery and Anti-Tick Vaccine Development. Int J Mol Sci 2023; 24:ijms24054969. [PMID: 36902400 PMCID: PMC10003026 DOI: 10.3390/ijms24054969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
Ticks can seriously affect human and animal health around the globe, causing significant economic losses each year. Chemical acaricides are widely used to control ticks, which negatively impact the environment and result in the emergence of acaricide-resistant tick populations. A vaccine is considered as one of the best alternative approaches to control ticks and tick-borne diseases, as it is less expensive and more effective than chemical controls. Many antigen-based vaccines have been developed as a result of current advances in transcriptomics, genomics, and proteomic techniques. A few of these (e.g., Gavac® and TickGARD®) are commercially available and are commonly used in different countries. Furthermore, a significant number of novel antigens are being investigated with the perspective of developing new anti-tick vaccines. However, more research is required to develop new and more efficient antigen-based vaccines, including on assessing the efficiency of various epitopes against different tick species to confirm their cross-reactivity and their high immunogenicity. In this review, we discuss the recent advancements in the development of antigen-based vaccines (traditional and RNA-based) and provide a brief overview of recent discoveries of novel antigens, along with their sources, characteristics, and the methods used to test their efficiency.
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Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
| | - Mohamed Amine Jmel
- Laboratory of Genomics and Proteomics of Disease Vectors, Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
| | - Imen Mekki
- Laboratory of Genomics and Proteomics of Disease Vectors, Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
| | - Ingrid Dijkgraaf
- Department of Biochemistry, CARIM, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Michail Kotsyfakis
- Laboratory of Genomics and Proteomics of Disease Vectors, Institute of Parasitology, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
- Correspondence:
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Pickett LJ, Amiro M, Hawboldt C, Faraone N. Common yarrow (Achillea millefolium) essential oil and main components as potential repellents and acaricides against Ixodes scapularis and Dermacentor variabilis (Acari: Ixodidae) ticks. EXPERIMENTAL & APPLIED ACAROLOGY 2023; 89:287-303. [PMID: 36905473 DOI: 10.1007/s10493-023-00782-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Repellent and acaricidal activities of essential oils (EO) extracted from common yarrow (Achillea millefolium L.) and main chemical components were evaluated against Ixodes scapularis and Dermacentor variabilis adult ticks and nymphs. Flowers and leaves were collected from two locations, Harvest Moon trail (HMT) and Port Williams (PW) in Nova Scotia (Canada), and EO were extracted via hydro-distillation. Samples were analyzed using GC-MS, and differences in chemical composition and quantity of compounds detected were reported in relation to the collection site and plant parts. EO were both rich in germacrene D (HMT EO 21.5 ± 1.31% wt; PW EO 25.5 ± 0.76% wt); however, HMT flower EO has a higher concentration of camphor (9.9 ± 0.08% wt) compared to PW flower EO (3.0 ± 0.01% wt). Significant acaricidal activity was reported against I. scapularis adult ticks, particularly for HMT flower EO with a LD50 of 2.4% v/v (95% confidence interval = 1.74-3.35) at 24 h post-exposure. Germacrene D had the lowest LD50 of 2.0% v/v (95% CI 1.45-2.58) among the four compounds after 7 days. No significant acaricidal effect was observed on D. variabilis adult ticks. Yarrow PW flower EO exerted repellent activity towards I. scapularis nymphs (100% repellency up to 30 min); however, repellency significantly declined over time. Yarrow EO exert promising acaricidal and repellent properties, that may be used to manage Ixodes ticks and the diseases they vector.
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Affiliation(s)
- Laura J Pickett
- Chemistry Department, Acadia University, Wolfville, NS, Canada
| | - Miranda Amiro
- Chemistry Department, Acadia University, Wolfville, NS, Canada
| | - Claire Hawboldt
- Chemistry Department, Acadia University, Wolfville, NS, Canada
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Adepoju OA, Afinowi OA, Tauheed AM, Danazumi AU, Dibba LBS, Balogun JB, Flore G, Saidu U, Ibrahim B, Balogun OO, Balogun EO. Multisectoral Perspectives on Global Warming and Vector-borne Diseases: a Focus on Southern Europe. CURRENT TROPICAL MEDICINE REPORTS 2023; 10:47-70. [PMID: 36742193 PMCID: PMC9883833 DOI: 10.1007/s40475-023-00283-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 01/30/2023]
Abstract
Purpose of Review The climate change (CC) or global warming (GW) modifies environment that favors vectors' abundance, growth, and reproduction, and consequently, the rate of development of pathogens within the vectors. This review highlights the threats of GW-induced vector-borne diseases (VBDs) in Southern Europe (SE) and the need for mitigation efforts to prevent potential global health catastrophe. Recent Findings Reports showed astronomical surges in the incidences of CC-induced VBDs in the SE. The recently (2022) reported first cases of African swine fever in Northern Italy and West Nile fever in SE are linked to the CC-modified environmental conditions that support vectors and pathogens' growth and development, and disease transmission. Summary VBDs endemic to the tropics are increasingly becoming a major health challenge in the SE, a temperate region, due to the favorable environmental conditions caused by CC/GW that support vectors and pathogens' biology in the previously non-endemic temperate regions.
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Affiliation(s)
- Oluwafemi A. Adepoju
- Department of Biochemistry, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
| | | | - Abdullah M. Tauheed
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
| | - Ammar U. Danazumi
- Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Lamin B. S. Dibba
- Department of Physical and Natural Sciences, School of Arts and Sciences, University of the Gambia, Serrekunda, The Gambia
| | - Joshua B. Balogun
- Department of Biological Sciences, Federal University Dutse, Jigawa State Dutse, Nigeria
| | - Gouegni Flore
- Department of Biochemistry, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology (ACENTDFB), Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
| | - Umar Saidu
- Department of Biochemistry, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology (ACENTDFB), Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
| | - Bashiru Ibrahim
- Department of Biochemistry, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
| | - Olukunmi O. Balogun
- Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan
| | - Emmanuel O. Balogun
- Department of Biochemistry, Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology (ACENTDFB), Ahmadu Bello University, Zaria, 2222 Kaduna State Nigeria
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Ghafar A, Davies N, Tadepalli M, Breidahl A, Death C, Haros P, Li Y, Dann P, Cabezas-Cruz A, Moutailler S, Foucault-Simonin A, Gauci CG, Stenos J, Hufschmid J, Jabbar A. Unravelling the Diversity of Microorganisms in Ticks from Australian Wildlife. Pathogens 2023; 12:pathogens12020153. [PMID: 36839425 PMCID: PMC9967841 DOI: 10.3390/pathogens12020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023] Open
Abstract
Ticks and tick-borne pathogens pose a significant threat to the health and welfare of humans and animals. Our knowledge about pathogens carried by ticks of Australian wildlife is limited. This study aimed to characterise ticks and tick-borne microorganisms from a range of wildlife species across six sites in Victoria, Australia. Following morphological and molecular characterisation (targeting 16S rRNA and cytochrome c oxidase I), tick DNA extracts (n = 140) were subjected to microfluidic real-time PCR-based screening for the detection of microorganisms and Rickettsia-specific real-time qPCRs. Five species of ixodid ticks were identified, including Aponomma auruginans, Ixodes (I.) antechini, I. kohlsi, I. tasmani and I. trichosuri. Phylogenetic analyses of 16S rRNA sequences of I. tasmani revealed two subclades, indicating a potential cryptic species. The microfluidic real-time PCR detected seven different microorganisms as a single (in 13/45 ticks) or multiple infections (27/45). The most common microorganisms detected were Apicomplexa (84.4%, 38/45) followed by Rickettsia sp. (55.6%, 25/45), Theileria sp. (22.2% 10/45), Bartonella sp. (17.8%, 8/45), Coxiella-like sp. (6.7%, 3/45), Hepatozoon sp. (2.2%, 1/45), and Ehrlichia sp. (2.2%, 1/45). Phylogenetic analyses of four Rickettsia loci showed that the Rickettsia isolates detected herein potentially belonged to a novel species of Rickettsia. This study demonstrated that ticks of Australian wildlife carry a diverse array of microorganisms. Given the direct and indirect human-wildlife-livestock interactions, there is a need to adopt a One Health approach for continuous surveillance of tick-associated pathogens/microorganisms to minimise the associated threats to animal and human health.
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Affiliation(s)
- Abdul Ghafar
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
- Correspondence:
| | - Nick Davies
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Mythili Tadepalli
- Australian Rickettsial Reference Laboratory, Barwon Health, Geelong, VIC 3220, Australia
| | - Amanda Breidahl
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Clare Death
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Philip Haros
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Yuting Li
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Peter Dann
- Research Department, Phillip Island Nature Park, P.O. Box 97, Cowes, VIC 3922, Australia
| | - Alejandro Cabezas-Cruz
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France
| | - Sara Moutailler
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France
| | - Angélique Foucault-Simonin
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France
| | - Charles G. Gauci
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - John Stenos
- Australian Rickettsial Reference Laboratory, Barwon Health, Geelong, VIC 3220, Australia
| | - Jasmin Hufschmid
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
| | - Abdul Jabbar
- Department of Veterinary Biosciences, Melbourne Veterinary School, University of Melbourne, Werribee, VIC 3030, Australia
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20
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Yasmeen N, Kashif M, Arif T, Khan A, Ali M, Khan MA, Farooq M, Said MB, Iqbal F. Distribution, prevalence and diversity of ticks (Acari: Ixodidae) infesting one-humped camels from Southwest Punjab, Pakistan. Vet Parasitol Reg Stud Reports 2023; 37:100825. [PMID: 36623905 DOI: 10.1016/j.vprsr.2022.100825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/11/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
In tropical countries like Pakistan, ticks are the most prevalent vectors for transmitting diseases to wild and domestic animals leading to their morbidity and mortality. In the present study, a total of 593 ticks infesting one-humped camels (n = 244) were collected during April till June 2021 from two tehsils of Layyah district located in Punjab (Pakistan) in order to investigate their diversity, prevalence and distribution. Data analysis revealed that camels located in Tehsil Choubara were significantly more tick infested than camels from Tehsil Layyah (P = 0.02). It was observed that the older camels were more prone to tick infestation that younger ones. Hyalomma and Rhipicephalus were the two tick genera identified during the present study and tick specimens of Hyalomma genus were the most prevalent (n = 590, 99.5%). In particular, Hyalomma dromedarii was the most prevalent tick species (n = 559, 94.3%), followed by Hyalomma anatolicum (n = 24, 4%), Hyalomma marginatum (n = 7, 1.2%) and Rhipicephalus sanguineus sensu lato (n = 3, 0.5%). The overall abundance of male ticks was higher than the female ticks with a ratio of 1:2.1. Neck was the most preferred site for the tick infestation followed by ventral, sternum, under tail, head, udder and back of analyzed camels. To our knowledge, this is the first report regarding tick diversity on camels from Layyah district and based on our finding, we recommend large-scale tick control strategies to be implemented in this district to uplift the livestock sector.
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Affiliation(s)
- Nusrat Yasmeen
- Department of Zoology, Ghazi University, Dera Ghazi Khan 32200, Pakistan
| | - Muhammad Kashif
- Department of Zoology, Ghazi University, Dera Ghazi Khan 32200, Pakistan
| | - Tehreem Arif
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Adil Khan
- Department of Botany and Zoology, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Ali
- College of Veterinary Sciences, Bahauddin Zakariya University, Bahadur Sub Campus Layyah, 31200, Pakistan
| | - Muzaffar Ali Khan
- Department of Microbiology and Molecular Genetics, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Farooq
- Department of Zoology, Ghazi University, Dera Ghazi Khan 32200, Pakistan
| | - Mourad Ben Said
- Department of Basic Sciences, Higher Institute of Biotechnology of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia; Laboratory of Microbiology, National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia.
| | - Furhan Iqbal
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan.
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21
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A systems biology approach to better understand human tick-borne diseases. Trends Parasitol 2023; 39:53-69. [PMID: 36400674 DOI: 10.1016/j.pt.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 11/17/2022]
Abstract
Tick-borne diseases (TBDs) are a growing global health concern. Despite extensive studies, ill-defined tick-associated pathologies remain with unknown aetiologies. Human immunological responses after tick bite, and inter-individual variations of immune-response phenotypes, are not well characterised. Current reductive experimental methodologies limit our understanding of more complex tick-associated illness, which results from the interactions between the host, tick, and microbes. An unbiased, systems-level integration of clinical metadata and biological host data - obtained via transcriptomics, proteomics, and metabolomics - offers to drive the data-informed generation of testable hypotheses in TBDs. Advanced computational tools have rendered meaningful analysis of such large data sets feasible. This review highlights the advantages of integrative system biology approaches as essential for understanding the complex pathobiology of TBDs.
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22
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Yessinou RE, Cazan CD, Panait LC, Mollong E, Biguezoton AS, Bonnet SI, Farougou S, Groschup MH, Mihalca AD. New geographical records for tick-borne pathogens in ticks collected from cattle in Benin and Togo. Vet Med Sci 2022; 9:345-352. [PMID: 36508582 PMCID: PMC9856996 DOI: 10.1002/vms3.1022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Ticks are obligate hematophagous arthropods capable of transmitting a great variety of endemic and emerging pathogens causing diseases in animals and humans. OBJECTIVES The aim of this study was to investigate the presence of Bartonella spp., Rickettsia spp., Borrelia burgdorferi sensu lato (s.l.) and Anaplasma phagocytophilum in ticks collected from cattle in Benin and Togo. METHODS Overall, 396 (148 males, 205 females and 43 nymphs) ticks were collected from cattle in 17 districts (Benin and Togo) between 2019 and 2020. Ticks were pooled into groups of 2-6 ticks per pool according to individual host, location, species and developmental stage. The DNA of each pool was extracted for molecular screening. RESULTS PCR results revealed that 20 tick pools were positive for Bartonella spp. (Benin and Togo) and 23 tick pools positive for Rickettsia spp. (Benin), while all pools were negative for A. phagocytophilum and B. burgdorferi s.l. Sequence analysis of positive Rickettsia samples revealed the presence of Rickettsia aeschlimannii. CONCLUSIONS The present study highlights the presence of zoonotic agents in ticks collected from cattle in Benin and Togo. This information will raise awareness of tick-borne diseases among physicians and veterinarians, stimulate further studies to monitor these pathogens, and advise on necessary measures to control the spread of these zoonoses.
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Affiliation(s)
- Roland Eric Yessinou
- Communicable Disease Research Unit (URMaT)University of Abomey‐CalaviCotonouBenin
| | - Cristina Daniela Cazan
- Department of Parasitology and Parasitic DiseasesFaculty of Veterinary MedicineUniversity of Agricultural Sciences and Veterinary Medicine of Cluj‐NapocaCluj‐NapocaRomania,CDS‐9, Molecular Biology and Veterinary Parasitology UnitFaculty of Veterinary MedicineUniversity of Agricultural Sciences and Veterinary Medicine of Cluj‐NapocaCluj‐NapocaRomania
| | - Luciana Cătălina Panait
- Department of Parasitology and Parasitic DiseasesFaculty of Veterinary MedicineUniversity of Agricultural Sciences and Veterinary Medicine of Cluj‐NapocaCluj‐NapocaRomania
| | - Eyabana Mollong
- Laboratory of Applied EntomologySection: Agro‐Resources Protection, Faculty of SciencesUniversity of LomeLomeTogo
| | - Abel S. Biguezoton
- Unité Maladies à Vecteurs et Biodiversité (UMaVeB)Centre International de Recherche‐Développement sur l'Elevage en zone Subhumide (CIRDES)Bobo‐DioulassoBurkina Faso
| | - Sarah Irène Bonnet
- Functional Genetics of Infectious Diseases UnitInstitut Pasteur, CNRS UMR 2000Université de Paris, Paris 7France,Animal Health DepartmentNouzillyFrance
| | - Souaïbou Farougou
- Communicable Disease Research Unit (URMaT)University of Abomey‐CalaviCotonouBenin
| | - Martin H. Groschup
- Friedrich‐Loeffler‐Insitut (FLI)Federal Research Institute for Animal HealthInstitute of Novel and Emerging Infectious DiseasesGreifswald‐Insel RiemsGermany
| | - Andrei Daniel Mihalca
- Department of Parasitology and Parasitic DiseasesFaculty of Veterinary MedicineUniversity of Agricultural Sciences and Veterinary Medicine of Cluj‐NapocaCluj‐NapocaRomania
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23
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Bloch EM, Zhu X, Krause PJ, Patel EU, Grabowski MK, Goel R, Auwaerter PG, Tobian AAR. Comparing the Epidemiology and Health Burden of Lyme Disease and Babesiosis Hospitalizations in the United States. Open Forum Infect Dis 2022; 9:ofac597. [PMID: 36467296 PMCID: PMC9709699 DOI: 10.1093/ofid/ofac597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Background Lyme disease (LD) and babesiosis are increasing in the United States. We sought to characterize and compare their epidemiology and health burden using a nationally representative sample of hospitalizations. Methods Data were extracted from the National Inpatient Sample (NIS) pertaining to LD and babesiosis for 2018 and 2019. The NIS is a comprehensive database of all-payer inpatient hospitalizations, representing a stratified systematic random sample of discharges from US hospitals. Patient demographics, clinical outcomes, and admission costs were evaluated, in addition to hospital-level variables (eg, location/teaching status and census division). Annual incidence of hospitalizations was calculated using US Census Bureau data. Results The annual incidence of hospitalizations of LD-related and babesiosis-related hospitalizations were 6.98 and 2.03 per 1 000 000 persons/year. Of the 4585 LD hospitalizations in 2018-2019, 60.9% were among male patients, 85.3% were White, and 39.0% were ≥60 years. Of the 1330 babesiosis hospitalizations in 2018-2019, 72.2% were among male patients, 78.9% were White, and 74.1% were ≥60 years; 70.0% of LD and 91.7% of babesiosis hospitalizations occurred in Middle Atlantic or New England. Lower disease severity was noted in 81.8% of LD hospitalizations compared with 49.3% of babesiosis hospitalizations, whereas those suffering from high severity were 2.3% and 6.0%, respectively. The mean hospital charges for LD and babesiosis hospitalizations were $33 440.8 and $40 689.8, respectively. Conclusions Despite overlap between the 2 diseases, LD has a broader geographic range and a greater number of hospital admissions, whereas babesiosis is more severe, incurring longer hospital stays, higher inpatient costs, and deaths.
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Affiliation(s)
- Evan M Bloch
- Correspondence: Evan M. Bloch, MBChB, MS, Associate Professor of Pathology, Associate Director, Transfusion Medicine, Department of Pathology, Johns Hopkins University, School of Medicine, 600 N. Wolfe Street, Carnegie 446 D1, Baltimore, MD 21287 ()
| | - Xianming Zhu
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Peter J Krause
- Department of Epidemiology and Public Health, Yale School of Public Health and Yale School of Medicine, New Haven, Connecticut, USA
| | - Eshan U Patel
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - M Kate Grabowski
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ruchika Goel
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Internal Medicine, Simmons Cancer Institute at Southern Illinois University, Springfield, Illinois, USA
| | - Paul G Auwaerter
- Sherrilyn and Ken Fisher Center for Environmental Infectious Diseases, Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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24
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Flórez-Álvarez L, de Souza EE, Botosso VF, de Oliveira DBL, Ho PL, Taborda CP, Palmisano G, Capurro ML, Pinho JRR, Ferreira HL, Minoprio P, Arruda E, de Souza Ferreira LC, Wrenger C, Durigon EL. Hemorrhagic fever viruses: Pathogenesis, therapeutics, and emerging and re-emerging potential. Front Microbiol 2022; 13:1040093. [PMID: 36386719 PMCID: PMC9640979 DOI: 10.3389/fmicb.2022.1040093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/06/2022] [Indexed: 01/29/2023] Open
Abstract
Hemorrhagic fever viruses (HFVs) pose a threat to global public health owing to the emergence and re-emergence of highly fatal diseases. Viral hemorrhagic fevers (VHFs) caused by these viruses are mostly characterized by an acute febrile syndrome with coagulation abnormalities and generalized hemorrhage that may lead to life-threatening organ dysfunction. Currently, the events underlying the viral pathogenicity associated with multiple organ dysfunction syndrome still underexplored. In this minireview, we address the current knowledge of the mechanisms underlying VHFs pathogenesis and discuss the available development of preventive and therapeutic options to treat these infections. Furthermore, we discuss the potential of HFVs to cause worldwide emergencies along with factors that favor their spread beyond their original niches.
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Affiliation(s)
| | | | | | | | - Paulo Lee Ho
- Virology Laboratory, Butantan Institute, São Paulo, Brazil
| | | | - Giuseppe Palmisano
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - João Renato Rebello Pinho
- Albert Einstein Institute for Teaching and Research (IIEP), Hospital Israelita Albert Einstein, São Paulo, Brazil,Hospital das Clínicas da Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Helena Lage Ferreira
- Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | | | - Eurico Arruda
- Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Luís Carlos de Souza Ferreira
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil,Scientific Platform Pasteur-USP, São Paulo, Brazil
| | - Carsten Wrenger
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil,*Correspondence: Carsten Wrenger, ; Edison Luiz Durigon,
| | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil,Scientific Platform Pasteur-USP, São Paulo, Brazil,*Correspondence: Carsten Wrenger, ; Edison Luiz Durigon,
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25
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Ozubek S, Ulucesme MC, Cirak VY, Aktas M. Detection of Theileria orientalis Genotypes from Cattle in Kyrgyzstan. Pathogens 2022; 11:pathogens11101185. [PMID: 36297242 PMCID: PMC9606894 DOI: 10.3390/pathogens11101185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/28/2022] Open
Abstract
The ikeda and chitose genotypes of Theileria orientalis, which for many years were thought to be benign, cause a disease that results in significant economic losses in the cattle industry. This study was carried out in order to determine the genotypes of T. orientalis in cattle in Kyrgyzstan, and 149 archived DNA samples known to be T. orientalis were analyzed by the PCR amplification of the major piroplasm surface protein (MPSP) gene region. Single-Strand Conformation Polymorphism (SSCP) analysis was performed to uncover the nucleotide changes in the archived DNA samples, and 15 samples showing different band profiles were subjected to sequence analysis. As a result of the sequence analysis, it was seen that the samples belonged to the buffeli and chitose A genotypes. In order to identify mixed genotypes, PCR was performed using primers specific for these genotypes, and buffeli (type 3), chitose (type 1) and buffeli+chitose were found to be positive in 26.2%, 2% and 71.8% of samples, respectively. As a result of this study, we showed the presence of buffeli (type 3) and chitose (type 1) genotypes of T. orientalis in cattle in Kyrgyzstan. Comprehensive epidemiological studies are needed to understand the clinical infections caused by the pathogenic chitose A and to determine the geographical distribution and different genotypes of T. orientalis.
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Affiliation(s)
- Sezayi Ozubek
- Department of Parasitology, Faculty of Veterinary Medicine, University of Firat, Elazig 23119, Turkiye
- Correspondence:
| | - Mehmet Can Ulucesme
- Department of Parasitology, Faculty of Veterinary Medicine, University of Firat, Elazig 23119, Turkiye
| | - Veli Yılgor Cirak
- Department of Parasitology, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa 23119, Turkiye
| | - Munir Aktas
- Department of Parasitology, Faculty of Veterinary Medicine, University of Firat, Elazig 23119, Turkiye
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26
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Cabrera R, Mendoza W, López-Mosquera L, Cano MA, Ortiz N, Campo V, Keynan Y, López L, Rueda ZV, Gutiérrez LA. Tick-Borne-Agents Detection in Patients with Acute Febrile Syndrome and Ticks from Magdalena Medio, Colombia. Pathogens 2022; 11:pathogens11101090. [PMID: 36297148 PMCID: PMC9611641 DOI: 10.3390/pathogens11101090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/01/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Acute febrile illness (AFI) is a morbid condition with a sudden onset of fever with at least seven days of evolution, where no signs or symptoms related to an apparent infection have been identified. In Latin America, a high proportion of disease is typically due to malaria and arboviruses. However, among the infectious etiologies, tick-borne diseases (TBDs) should also be considered, especially in areas where people come into direct contact with these arthropods. This study aims to describe the etiology and epidemiology related to tick-borne agents in patients with AFI and the tick’s natural infection by agents of TBD in the rural tropical Magdalena Medio region in Colombia, and explore the factors associated with the presence of Coxiella burnetii infection. We conduct a cohort study enrolling 271 patients with AFI to detect the bacteria of the genera Anaplasma, Ehrlichia, Coxiella, Rickettsia, Borrelia, and Francisella through molecular techniques, and additionally evaluate the presence of IgG antibodies with commercially available kits. We also conduct tick collection in the patient’s households or workplaces for the molecular screening of the same bacterial genera. Seropositivity to IgG antibodies was obtained for all the bacteria analyzed, with Francisella being the most common at 39.5% (107/271), followed by R. rickettsii at 31.4% (85/271), Ehrlichia at 26.9% (73/271), R. typhi at 15.5% (42/271), Anaplasma at 14.4% (39/271), and Borrelia at 6.6% (18/271). However, these bacteria were not detected by the molecular techniques used. Coxiella burnetii infection was detected in 39.5% of the patients: 49.5% only by phase I and II IgG antibodies, 33.6% only by real-time PCR, and 16.8% had a concordant positive result for both techniques. A total of 191 adult ticks, 111 females and 80 males, were collected and identified as Rhipicephalus sanguineus s.l. and Rhipicephalus microplus. In the 169 adult ticks in which natural infection was evaluated, Ehrlichia spp. was detected in 21.3% (36/169), Coxiella spp. in 11.8% (20/169), and Anaplasma spp. in 4.7% (8/169). In conclusion, we identified the prior exposition to Francisella, Anaplasma, Ehrlichia, Rickettsia, Borrelia, and Coxiella in patients through serological tests. We also detected the infection of C. burnetii using molecular techniques. In the ticks, we identified bacteria of the genera Coxiella, Anaplasma, and Ehrlichia. These results suggest the importance of these zoonotic agents as possible causes of AFI in this region.
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Affiliation(s)
- Ruth Cabrera
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Willington Mendoza
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Loreth López-Mosquera
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Miguel Angel Cano
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Nicolas Ortiz
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Valentina Campo
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Yoav Keynan
- Department of Internal Medicine, Medical Microbiology & Infectious Diseases and Community Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Lucelly López
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
| | - Zulma Vanessa Rueda
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
- Department of Internal Medicine, Medical Microbiology & Infectious Diseases and Community Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Lina Andrea Gutiérrez
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín 050034, Colombia
- Correspondence:
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Schwartz S, Calvente E, Rollinson E, Sample Koon Koon D, Chinnici N. Tick-Borne Pathogens in Questing Blacklegged Ticks (Acari: Ixodidae) From Pike County, Pennsylvania. JOURNAL OF MEDICAL ENTOMOLOGY 2022; 59:1793-1804. [PMID: 35920050 PMCID: PMC9473652 DOI: 10.1093/jme/tjac107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Indexed: 06/15/2023]
Abstract
Active surveillance was conducted by collecting questing ticks from vegetation through a 2-yr survey in Pike County, Pennsylvania. Over a thousand blacklegged ticks (Ixodes scapularis Say) and American dog ticks (Dermacentor variabilis Say) were collected. A single specimen of the following species was collected: lone star tick (Amblyomma americanum L.), rabbit tick (Haemaphysalis leporispalustris Packard), and an Asian longhorned tick (Haemaphysalis longicornis Neumann). This study represents the largest county-wide study in Pennsylvania, surveying 988 questing I. scapularis adult and nymphs. Molecular detection of five distinct tick-borne pathogens was screened through real-time PCR at a single tick resolution. Respectively, the overall 2-yr adult and nymph prevalence were highest with Borrelia burgdorferi (Spirochaetales: Spirochaetacceae) (45.99%, 18.94%), Anaplasma phagocytophilum (Rickettsiales: Anaplasmataceae) (12.29%, 7.95%) where the variant-ha (8.29%, 3.03%) was overall more prevalent than the variant-v1 (2.49%, 4.17%), Babesia microti (Piroplasmida: Babesiidae) (4.97%, 5.30%), Borrelia miyamotoi (Spirochaetales: Spirochaetaceae) (1.38%, 1.89%), and Powassan virus lineage II [POWV]/deer tick virus (DTV) (2.07%, 0.76%). Adult and nymph coinfection prevalence of B. burgdorferi and B. microti (3.03%, 4.97%) and adult coinfection of B. burgdorferi and A. phagocytophilum or A. phagocytophilum and B. microti were significantly higher than the independent infection rate expected naturally. This study highlights the urgency to conduct diverse surveillance studies with large sample sizes to better understand the human risk for tick-borne diseases within small geographical areas.
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Affiliation(s)
- Sarah Schwartz
- Dr. Jane Huffman Wildlife Genetics Institute, East Stroudsburg University of Pennsylvania, 562 Independence Road, Suite 114, East Stroudsburg, PA 18301, USA
| | - Elizabeth Calvente
- Dr. Jane Huffman Wildlife Genetics Institute, East Stroudsburg University of Pennsylvania, 562 Independence Road, Suite 114, East Stroudsburg, PA 18301, USA
| | - Emily Rollinson
- East Stroudsburg University, 200 Prospect Street, East Stroudsburg, PA 18301, USA
| | - Destiny Sample Koon Koon
- Dr. Jane Huffman Wildlife Genetics Institute, East Stroudsburg University of Pennsylvania, 562 Independence Road, Suite 114, East Stroudsburg, PA 18301, USA
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Disler G, Schlaht R, Hahn MB. Perspectives on and prevalence of ticks and tick-borne diseases in Alaskan veterinary clinics. J Am Vet Med Assoc 2022; 261:1-8. [PMID: 35921400 PMCID: PMC10424748 DOI: 10.2460/javma.22.04.0162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objective To assess knowledge, attitudes, and practices (KAP) of veterinary personnel and pet owners regarding ticks and tick-borne diseases in Alaska and to conduct a serosurvey for tick-borne disease pathogens among domestic animals visiting veterinary clinics for preventative care. Sample Across 8 veterinary clinics, we sampled 31 veterinary personnel, 81 pet owners, 102 client-owned dogs, and 1 client-owned cat. Procedures Information on KAP among veterinary staff and pet owners was collected via self-administered questionnaires. Tick and tick-borne disease prevalence were assessed via tick checks and benchtop ELISA antibody tests detecting Anaplasma phagocytophilum, Anaplasma platys, Erlichia canis, Erlichia ewingii, and Borrelia burgdorferi. Results The veterinary personnel KAP survey showed a low average knowledge score (53.5%) but a moderate attitude score (71.7%). In contrast, owner average knowledge score was higher (67.5%) and attitude score was comparatively low (50.6%). Both veterinary personnel and owners had low average practice scores (64.5% and 56.3%, respectively). One dog was positive for anaplasmosis (unknown species) antibody, and 1 dog was positive for B burgdorferi antibody. No ticks were found during the study. Clinical Relevance This study was the first of its kind in the state and indicated a low prevalence of ticks and tick-borne diseases in the domestic pet population and highlighted significant knowledge gaps that could be targeted by public health efforts. Our results suggest the value of a One Health approach and of the veterinary-client relationship to address ticks and tick-borne diseases.
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Affiliation(s)
- Gale Disler
- Institute for Circumpolar Health Studies, University of Alaska, Anchorage, AK
| | | | - Micah B. Hahn
- Institute for Circumpolar Health Studies, University of Alaska, Anchorage, AK
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Selmi R, Belkahia H, Sazmand A, Ben Said M, Messadi L. Epidemiology and genetic characteristics of tick-borne bacteria in dromedary camels of the world. Acta Trop 2022; 234:106599. [PMID: 35810831 DOI: 10.1016/j.actatropica.2022.106599] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 11/01/2022]
Abstract
This review presents updated knowledge on the main tick-borne bacteria infecting one-humped camels (Camelus dromedarius) around the world. Camels are increasingly the subject of several scientific investigations, showing that they are receptive and carriers of several zoonotic bacteria. An appraisal is also given of the relative public health importance of these bacterial infections according to One Health concept. Microscopic, serologic and molecular findings are appropriately generated in order to exploit epidemiological data, and phylogeographic specificities associated to each vector-borne bacterium. Indeed, camels and their ticks harbour similar species and genotypes of pathogenic bacteria commonly identified in other animals, e.g., Anaplasma spp.,Ehrlichia spp., Borrelia spp., Rickettsia spp., Coxiella burnetii, Bartonella spp. and hemotrophic mycoplasmas. This evidence suggests an epidemiological role of camels in the spread of these pathogens in their natural habitats. However, these infections are commonly asymptomatic in camels resulting in underestimation of the impact of these infections. Furthermore, camels have recently been proven to have their own specific unclassified strains, such as Candidatus Anaplasma camelii and Candidatus Bartonella camelii, implying that possible interactions may lead to the emergence of pathogenic and zoonotic bacteria. In camel-rearing areas of the world, spatial and temporal spread of these infections, due to climatic and ecological changes and human activities such as development projects and urbanization, is expected. Hence the data presented herein provides a basis for strategic frameworks for the research and the development of novel diagnosis and control strategies worldwide, which are needed to protect camels, other livestock, and people in contact with dromedaries from threats that arthropod-borne pathogens can pose.
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Affiliation(s)
- Rachid Selmi
- Laboratory of Microbiology at the National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia; Ministry of National Defense, General Directorate of Military Health, Military center of Veterinary Medicine, Tunis, Tunisia.
| | - Hanène Belkahia
- Laboratory of Microbiology at the National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia
| | - Alireza Sazmand
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan 6517658978, Iran
| | - Mourad Ben Said
- Laboratory of Microbiology at the National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia; Department of Basic Sciences, Higher Institute of Biotechnology of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia
| | - Lilia Messadi
- Laboratory of Microbiology at the National School of Veterinary Medicine of Sidi Thabet, University of Manouba, Manouba 2010, Tunisia.
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Ergunay K, Mutinda M, Bourke B, Justi SA, Caicedo-Quiroga L, Kamau J, Mutura S, Akunda IK, Cook E, Gakuya F, Omondi P, Murray S, Zimmerman D, Linton YM. Metagenomic Investigation of Ticks From Kenyan Wildlife Reveals Diverse Microbial Pathogens and New Country Pathogen Records. Front Microbiol 2022; 13:932224. [PMID: 35847110 PMCID: PMC9283121 DOI: 10.3389/fmicb.2022.932224] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
Focusing on the utility of ticks as xenosurveillance sentinels to expose circulating pathogens in Kenyan drylands, host-feeding ticks collected from wild ungulates [buffaloes, elephants, giraffes, hartebeest, impala, rhinoceros (black and white), zebras (Grévy’s and plains)], carnivores (leopards, lions, spotted hyenas, wild dogs), as well as regular domestic and Boran cattle were screened for pathogens using metagenomics. A total of 75 host-feeding ticks [Rhipicephalus (97.3%) and Amblyomma (2.7%)] collected from 15 vertebrate taxa were sequenced in 46 pools. Fifty-six pathogenic bacterial species were detected in 35 pools analyzed for pathogens and relative abundances of major phyla. The most frequently observed species was Escherichia coli (62.8%), followed by Proteus mirabilis (48.5%) and Coxiella burnetii (45.7%). Francisella tularemia and Jingmen tick virus (JMTV) were detected in 14.2 and 13% of the pools, respectively, in ticks collected from wild animals and cattle. This is one of the first reports of JMTV in Kenya, and phylogenetic reconstruction revealed significant divergence from previously known isolates and related viruses. Eight fungal species with human pathogenicity were detected in 5 pools (10.8%). The vector-borne filarial pathogens (Brugia malayi, Dirofilaria immitis, Loa loa), protozoa (Plasmodium spp., Trypanosoma cruzi), and environmental and water-/food-borne pathogens (Entamoeba histolytica, Encephalitozoon intestinalis, Naegleria fowleri, Schistosoma spp., Toxoplasma gondii, and Trichinella spiralis) were detected. Documented viruses included human mastadenovirus C, Epstein-Barr virus and bovine herpesvirus 5, Trinbago virus, and Guarapuava tymovirus-like virus 1. Our findings confirmed that host-feeding ticks are an efficient sentinel for xenosurveillance and demonstrate clear potential for wildlife-livestock-human pathogen transfer in the Kenyan landscape.
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Affiliation(s)
- Koray Ergunay
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
- *Correspondence: Koray Ergunay,
| | | | - Brian Bourke
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
| | - Silvia A. Justi
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
| | - Laura Caicedo-Quiroga
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
| | - Joseph Kamau
- One Health Centre, Institute of Primate Research (IPR), Nairobi, Kenya
| | - Samson Mutura
- One Health Centre, Institute of Primate Research (IPR), Nairobi, Kenya
| | | | - Elizabeth Cook
- International Livestock Research Institute (ILRI), Nairobi, Kenya
| | - Francis Gakuya
- Wildlife Research and Training Institute (WRTI), Naivasha, Kenya
| | - Patrick Omondi
- Wildlife Research and Training Institute (WRTI), Naivasha, Kenya
| | - Suzan Murray
- Global Health Program, Smithsonian Conservation Biology Unit, Fort Royal, VA, United States
| | - Dawn Zimmerman
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
- Department of Epidemiology of Microbial Disease, Yale School of Public Health, New Haven, CT, United States
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution Museum Support Center, Suitland, MD, United States
- One Health Branch, Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History (NMNH), Washington, DC, United States
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Reifenberger GC, Thomas BA, Rhodes DVL. Comparison of DNA Extraction and Amplification Techniques for Use with Engorged Hard-Bodied Ticks. Microorganisms 2022; 10:microorganisms10061254. [PMID: 35744772 PMCID: PMC9228219 DOI: 10.3390/microorganisms10061254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 05/30/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023] Open
Abstract
Tick-borne infections are a serious threat to humans, livestock, and companion animals in many parts of the world, often leading to high morbidity and mortality rates, along with decreased production values and/or costly treatments. The prevalence of the microbes responsible for these infections is typically assessed by the molecular identification of pathogens within the tick vectors. Ticks sampled from animals are often engorged with animal blood, presenting difficulties in the amplification of nucleic acids due to the inhibitory effects of mammalian blood on the enzymes used in polymerase chain reactions (PCRs). This study tested two tick preparation methods, three methods of DNA extraction, and four commercially available DNA polymerases to determine the most reliable method of extracting and amplifying DNA from engorged ticks. Our study found that the phenol–chloroform extraction method yielded the highest concentration of DNA, yet DNA extracted by this method was amplified the least successfully. Thermo Scientific’s Phusion Plus PCR Master Mix was the best at amplifying the tick 16s rRNA gene, regardless of extraction method. Finally, our study identified that using the Qiagen DNeasy Blood & Tissues kit for DNA extraction coupled with either Phusion Plus PCR Master Mix or GoTaq DNA polymerase Master Mix is the best combination for the optimized amplification of DNA extracted from engorged ticks.
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Functional characterization of α-Gal producing lactic acid bacteria with potential probiotic properties. Sci Rep 2022; 12:7484. [PMID: 35524154 PMCID: PMC9075922 DOI: 10.1038/s41598-022-11632-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 04/27/2022] [Indexed: 11/21/2022] Open
Abstract
The possibility of exploiting the human immune response to glycan α-Gal for the control of multiple infectious diseases has been the objective of recent investigations. In this field of research, the strain of Escherichia coli O86:B7 has been at the forefront, but this Gram-negative microorganism presents a safety concern and therefore cannot be considered as a probiotic. To address this challenge, this study explored the identification of novel lactic acid bacteria with a safe history of use, producing α-Gal and having probiotic potential. The lactic acid bacteria were isolated from different traditionally fermented foods (kununn-zaki, kindirmo, and pulque) and were screened for the production of α-Gal and some specific probiotic potential indicators. The results showed that Ten (10) out of forty (40) [25%] of the tested lactic acid bacteria (LAB) produced α-Gal and were identified as Limosilactobacillus fermentum, Levilactobacillus brevis, Agrilactobacillus composti, Lacticaseibacillus paracasei, Leuconostoc mesenteroides and Weissella confusa. Four (4) LAB strains with highest levels of α-Gal were further selected for in vivo study using a mouse model (α1,3GT KO mice) to elucidate the immunological response to α-Gal. The level of anti-α-Gal IgG observed were not significant while the level of anti-α-Gal IgM was lower in comparison to the level elicited by E. coli O86:B7. We concluded that the lactic acid bacteria in this study producing α-Gal have potential probiotic capacity and can be further explored in α-Gal-focused research for both the prevention and treatment of various infectious diseases and probiotic development.
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Maqbool M, Sajid MS, Saqib M, Anjum FR, Tayyab MH, Rizwan HM, Rashid MI, Rashid I, Iqbal A, Siddique RM, Shamim A, Hassan MA, Atif FA, Razzaq A, Zeeshan M, Hussain K, Nisar RHA, Tanveer A, Younas S, Kamran K, Rahman SU. Potential Mechanisms of Transmission of Tick-Borne Viruses at the Virus-Tick Interface. Front Microbiol 2022; 13:846884. [PMID: 35602013 PMCID: PMC9121816 DOI: 10.3389/fmicb.2022.846884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
Ticks (Acari; Ixodidae) are the second most important vector for transmission of pathogens to humans, livestock, and wildlife. Ticks as vectors for viruses have been reported many times over the last 100 years. Tick-borne viruses (TBVs) belong to two orders (Bunyavirales and Mononegavirales) containing nine families (Bunyaviridae, Rhabdoviridae, Asfarviridae, Orthomyxovirida, Reoviridae, Flaviviridae, Phenuviridae, Nyamiviridae, and Nairoviridae). Among these TBVs, some are very pathogenic, causing huge mortality, and hence, deserve to be covered under the umbrella of one health. About 38 viral species are being transmitted by <10% of the tick species of the families Ixodidae and Argasidae. All TBVs are RNA viruses except for the African swine fever virus from the family Asfarviridae. Tick-borne viral diseases have also been classified as an emerging threat to public health and animals, especially in resource-poor communities of the developing world. Tick-host interaction plays an important role in the successful transmission of pathogens. The ticks' salivary glands are the main cellular machinery involved in the uptake, settlement, and multiplication of viruses, which are required for successful transmission into the final host. Furthermore, tick saliva also participates as an augmenting tool during the physiological process of transmission. Tick saliva is an important key element in the successful transmission of pathogens and contains different antimicrobial proteins, e.g., defensin, serine, proteases, and cement protein, which are key players in tick-virus interaction. While tick-virus interaction is a crucial factor in the propagation of tick-borne viral diseases, other factors (physiological, immunological, and gut flora) are also involved. Some immunological factors, e.g., toll-like receptors, scavenger receptors, Janus-kinase (JAK-STAT) pathway, and immunodeficiency (IMD) pathway are involved in tick-virus interaction by helping in virus assembly and acting to increase transmission. Ticks also harbor some endogenous viruses as internal microbial faunas, which also play a significant role in tick-virus interaction. Studies focusing on tick saliva and its role in pathogen transmission, tick feeding, and control of ticks using functional genomics all point toward solutions to this emerging threat. Information regarding tick-virus interaction is somewhat lacking; however, this information is necessary for a complete understanding of transmission TBVs and their persistence in nature. This review encompasses insight into the ecology and vectorial capacity of tick vectors, as well as our current understanding of the predisposing, enabling, precipitating, and reinforcing factors that influence TBV epidemics. The review explores the cellular, biochemical, and immunological tools which ensure and augment successful evading of the ticks' defense systems and transmission of the viruses to the final hosts at the virus-vector interface. The role of functional genomics, proteomics, and metabolomics in profiling tick-virus interaction is also discussed. This review is an initial attempt to comprehensively elaborate on the epidemiological determinants of TBVs with a focus on intra-vector physiological processes involved in the successful execution of the docking, uptake, settlement, replication, and transmission processes of arboviruses. This adds valuable data to the existing bank of knowledge for global stakeholders, policymakers, and the scientific community working to devise appropriate strategies to control ticks and TBVs.
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Affiliation(s)
- Mahvish Maqbool
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Sohail Sajid
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
- Department of Epidemiology and Public Health, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Saqib
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad, Pakistan
| | - Faisal Rasheed Anjum
- Department of Epidemiology and Public Health, University of Agriculture, Faisalabad, Pakistan
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Haleem Tayyab
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad, Pakistan
| | - Hafiz Muhammad Rizwan
- Section of Parasitology, Department of Pathobiology, KBCMA College of Veterinary and Animal Sciences Narowal, Lahore, Pakistan
| | - Muhammad Imran Rashid
- Department of Parasitology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Imaad Rashid
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad, Pakistan
| | - Asif Iqbal
- Section of Parasitology, Department of Pathobiology, Riphah College of Veterinary Sciences, Riphah International University, Lahore, Pakistan
| | - Rao Muhammad Siddique
- Section of Parasitology, Department of Pathobiology, Riphah College of Veterinary Sciences, Riphah International University, Lahore, Pakistan
| | - Asim Shamim
- Department of Pathobiology, University of the Poonch Rawalakot, Rawalakot, Pakistan
| | - Muhammad Adeel Hassan
- Department of Parasitology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Farhan Ahmad Atif
- Medicine Section, Department of Clinical Sciences, Collège of Veterinary and Animal Sciences, Jhang, Pakistan
- University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Abdul Razzaq
- Agricultural Linkages Program, Pakistan Agriculture Research Council, Islamabad, Pakistan
| | - Muhammad Zeeshan
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - Kashif Hussain
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | | | - Akasha Tanveer
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - Sahar Younas
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - Kashif Kamran
- Department of Zoology, University of Balochistan, Quetta, Pakistan
| | - Sajjad ur Rahman
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
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Gęgotek A, Moniuszko-Malinowska A, Groth M, Pancewicz S, Czupryna P, Dunaj J, Atalay S, Radziwon P, Skrzydlewska E. Plasma Proteomic Profile of Patients with Tick-Borne Encephalitis and Co-Infections. Int J Mol Sci 2022; 23:ijms23084374. [PMID: 35457192 PMCID: PMC9031133 DOI: 10.3390/ijms23084374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022] Open
Abstract
Despite the increasing number of patients suffering from tick-borne encephalitis (TBE), Lyme disease, and their co-infection, the mechanisms of the development of these diseases and their effects on the human body are still unknown. Therefore, the aim of this study was to evaluate the changes in the proteomic profile of human plasma induced by the development of TBE and to compare it with changes in TBE patients co-infected with other tick-borne pathogens. The results obtained by proteomic analysis using a nanoLC-Q Exactive HF mass spectrometer showed that the most highly elevated groups of proteins in the plasma of TBE patients with co-infection were involved in the pro-inflammatory response and protein degradation, while the antioxidant proteins and factors responsible for protein biosynthesis were mainly downregulated. These results were accompanied by enhanced GSH- and 4-HNE-protein adducts formation, observed in TBE and co-infected patients at a higher level than in the case of patients with only TBE. In conclusion, the differences in the proteomic profiles between patients with TBE and co-infected patients indicate that these diseases are significantly diverse and, consequently, require different treatment, which is particularly important for further research, including the development of novel diagnostics tools.
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Affiliation(s)
- Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222 Bialystok, Poland; (S.A.); (E.S.)
- Correspondence: ; Tel.: +48-857485883
| | - Anna Moniuszko-Malinowska
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540 Bialystok, Poland; (A.M.-M.); (M.G.); (S.P.); (P.C.); (J.D.)
| | - Monika Groth
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540 Bialystok, Poland; (A.M.-M.); (M.G.); (S.P.); (P.C.); (J.D.)
| | - Sławomir Pancewicz
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540 Bialystok, Poland; (A.M.-M.); (M.G.); (S.P.); (P.C.); (J.D.)
| | - Piotr Czupryna
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540 Bialystok, Poland; (A.M.-M.); (M.G.); (S.P.); (P.C.); (J.D.)
| | - Justyna Dunaj
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540 Bialystok, Poland; (A.M.-M.); (M.G.); (S.P.); (P.C.); (J.D.)
| | - Sinemyiz Atalay
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222 Bialystok, Poland; (S.A.); (E.S.)
| | - Piotr Radziwon
- Regional Centre for Transfusion Medicine, M. Sklodowskiej-Curie 23, 15-950 Bialystok, Poland;
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222 Bialystok, Poland; (S.A.); (E.S.)
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Perveen N, Muzaffar SB, Vijayan R, Al-Deeb MA. Assessing Temporal Changes in Microbial Communities in Hyalomma dromedarii Collected From Camels in the UAE Using High-Throughput Sequencing. Front Vet Sci 2022; 9:861233. [PMID: 35433895 PMCID: PMC9008585 DOI: 10.3389/fvets.2022.861233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/23/2022] [Indexed: 11/24/2022] Open
Abstract
Ticks (Acari) are ectoparasites of animals that harbor communities of microbes of importance to animal and human health. Microbial communities associated with ticks exhibit temporal patterns of variation in their composition, with different genera dominating at different times of the year. In this study, molecular tools were used to assess the composition of the microbial communities associated with Hyalomma dromdarii. Adult ticks were collected every month for 1 year from 25 camels in the UAE. A total of 12 DNA pools were prepared (one pool for each month). We monitored the microbiota of ticks using high-throughput sequencing of the V3–V4 region of the bacterial 16S rRNA gene. A total of 614 operational taxonomic units were produced through de novo clustering and belonged to 17 phyla, 30 classes, 46 orders, 118 families, and 222 genera. Fifteen bacterial families were found to be the most abundant. The dominant bacterial communities associated with H. dromedarii belonged to the genera Staphylococcus, Bacillus, Francisella, and Corynebacterium, which were reported with high relative abundance from all months. No significant correlation occurred between the abundance of microbial families or genera in H. dromedarii ticks and the ambient temperature. Our findings revealed, for the first time in the UAE, temporal fluctuations of microbial communities in H. dromedarii ticks and provided key insights on the interaction between different microbial groups. Moreover, our results contribute to the current understanding of disease development and allow more investigations for potentially pathogenic microbiota.
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Dyczko D, Kiewra D, Kolanek A, Błażej P. The influence of local environmental factors in southwestern Poland on the abundance of Ixodes ricinus and prevalence of infection with Borrelia burgdorferi s.l. and B. miyamotoi. Parasitol Res 2022; 121:1575-1585. [PMID: 35347426 DOI: 10.1007/s00436-022-07493-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
Ticks are important ectoparasites and vectors of pathogens that cause disease in humans and animals. The natural habitat of Ixodes ricinus ticks is forests, which are convenient habitats to search for hosts, including reservoir hosts, and therefore can be an important habitat source of tick-borne pathogens. The aim of the study was to assess the usefulness of detailed forest habitat-type maps to estimate the tick-borne risk at a local scale (Lower Silesia, SW Poland). For the purposes of estimating tick abundance, we used the land cover maps available from the Forest Data Bank. For I. ricinus collection, nine sites located in three forest habitat types were chosen: broadleaf forest, mixed broadleaf and coniferous forest and coniferous forest. Ticks were collected once a month from April to June 2018 and 2019 using the standard flagging method. At each of the nine sites, ticks were collected in four plots, of 100 m2 each. Tick abundance was analysed using general linear mixed models (GLMM). A total of 2196 (10.1/100 m2) ticks were collected, including 2093 Ixodes ricinus (95.3%; 9.6/100 m2), 46 Dermacentor reticulatus (2.1%; 0.2/100 m2) and 57 Haemaphysalis concinna (2.6%; 0.3/100 m2). Among the collected I. ricinus were 589 larvae (28.1%; 2.7/100 m2), 1261 nymphs (60.3%; 5.8/100 m2), 128 females (6.1%; 0.6/100 m2) and 115 males (5.5%; 0.5/100 m2). We found a highly significant effect of forest habitat type on the density of ticks for broadleaf forest (coefficient = 1.87267, p-value = 2.79e - 07). Additionally, a significant influence of air temperature and relative humidity on the abundance of ticks was observed. During spring, the peak activity of I. ricinus was recorded in May and June. For DNA amplification of Borrelia burgdorferi s.l., a nested PCR method was used. Out of 494 I. ricinus, 83 (16.8%) were positive for Borrelia spp. The RFLP method showed the occurrence of five species including four belonging to the B. burgdorferi s.l. complex: B. afzelii (30.1%), B. garinii (38.6%), B. valaisiana (2.4%) and B. lusitaniae (18.1%). Furthermore, B. miyamotoi (9.6%), a species belonging to bacteria that cause relapsing fever as well as co-infection of B. miyamotoi/B.lusitaniae (1.2%) were found. The differences in the infection level of Borrelia spp. between broadleaf forest and mixed broadleaf and coniferous forest were statistically significant.
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Affiliation(s)
- Dagmara Dyczko
- Department of Microbial Ecology and Acaroentomology, Faculty of Biological Sciences, University of Wroclaw, Przybyszewskiego 63/77, 51-148, Wroclaw, Poland.
| | - Dorota Kiewra
- Department of Microbial Ecology and Acaroentomology, Faculty of Biological Sciences, University of Wroclaw, Przybyszewskiego 63/77, 51-148, Wroclaw, Poland
| | - Aleksandra Kolanek
- Department of Geoinformatics and Cartography, Institute of Geography and Regional Development, University of Wroclaw, pl. Uniwersytecki 1, 50-137, Wroclaw, Poland
| | - Paweł Błażej
- Department of Bioinformatics and Genomics, Faculty of Biotechnology, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
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Khanal S, Taank V, Anderson JF, Sultana H, Neelakanta G. Rickettsial Pathogen Perturbs Tick Circadian Gene to Infect the Vertebrate Host. Int J Mol Sci 2022; 23:ijms23073545. [PMID: 35408905 PMCID: PMC8998576 DOI: 10.3390/ijms23073545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/14/2022] [Accepted: 03/19/2022] [Indexed: 11/20/2022] Open
Abstract
Ixodes scapularis is a medically important tick that transmits several microbes to humans, including rickettsial pathogen Anaplasma phagocytophilum. In nature, these ticks encounter several abiotic factors including changes in temperature, humidity, and light. Many organisms use endogenously generated circadian pathways to encounter abiotic factors. In this study, we provide evidence for the first time to show that A. phagocytophilum modulates the arthropod circadian gene for its transmission to the vertebrate host. We noted a circadian oscillation in the expression of arthropod clock, bmal1, period and timeless genes when ticks or tick cells were exposed to alternate 12 h light: 12 h dark conditions. Moreover, A. phagocytophilum significantly modulates the oscillation pattern of expression of these genes. In addition, increased levels of clock and bmal1 and decreased expression of Toll and JAK/STAT pathway immune genes such as pelle and jak, respectively, were noted during A. phagocytophilum transmission from ticks to the vertebrate host. RNAi-mediated knockdown of clock gene expression in ticks resulted in the reduced expression of jak and pelle that increased bacterial transmission from ticks to the murine host. Furthermore, clock-deficient ticks fed late and had less engorgement weights. These results indicate an important role for circadian modulation of tick gene expression that is critical for arthropod blood feeding and transmission of pathogens from vector to the vertebrate host.
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Affiliation(s)
- Supreet Khanal
- Department of Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA; (S.K.); (V.T.); (H.S.)
| | - Vikas Taank
- Department of Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA; (S.K.); (V.T.); (H.S.)
| | - John F. Anderson
- Department of Entomology, Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA;
| | - Hameeda Sultana
- Department of Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA; (S.K.); (V.T.); (H.S.)
- Center for Molecular Medicine, Old Dominion University, Norfolk, VA 23529, USA
| | - Girish Neelakanta
- Department of Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA; (S.K.); (V.T.); (H.S.)
- Center for Molecular Medicine, Old Dominion University, Norfolk, VA 23529, USA
- Correspondence: ; Tel.: +1-(865)-974-5715
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Integrative Alternative Tactics for Ixodid Control. INSECTS 2022; 13:insects13030302. [PMID: 35323601 PMCID: PMC8948879 DOI: 10.3390/insects13030302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary Hard ticks are important for economic and health reasons, and control has mainly relied upon use of synthetic acaricides. Contemporary development of resistance and concerns relating to health and environmental safety have elicited exploration into alternative tactics for hard tick management. Some examples of alternative tactics involve biological control, desiccant dusts, growth regulators, vaccines, cultural methods, and ingested medications. Abstract Ixodids (hard ticks), ectoparasitic arthropods that vector the causal agents of many serious diseases of humans, domestic animals, and wildlife, have become increasingly difficult to control because of the development of resistance against commonly applied synthetic chemical-based acaricides. Resistance has prompted searches for alternative, nonconventional control tactics that can be used as part of integrated ixodid management strategies and for mitigating resistance to conventional acaricides. The quest for alternative control tactics has involved research on various techniques, each influenced by many factors, that have achieved different degrees of success. Alternative approaches include cultural practices, ingested and injected medications, biological control, animal- and plant-based substances, growth regulators, and inert desiccant dusts. Research on biological control of ixodids has mainly focused on predators, parasitoid wasps, infective nematodes, and pathogenic bacteria and fungi. Studies on animal-based substances have been relatively limited, but research on botanicals has been extensive, including whole plant, extract, and essential oil effects on ixodid mortality, behavior, and reproduction. The inert dusts kaolin, silica gel, perlite, and diatomaceous earth are lethal to ixodids, and they are impervious to environmental degradation, unlike chemical-based toxins, remaining effective until physically removed.
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Wang YN, Jiang RR, Ding H, Zhang XL, Wang N, Zhang YF, Li Y, Chen JJ, Zhang PH, Li H, Jiang JF, Liu LZ, Yu MB, Wang G, Zhang XA, Liu W. First Detection of Mukawa Virus in Ixodes persulcatus and Haemaphysalis concinna in China. Front Microbiol 2022; 13:791563. [PMID: 35308357 PMCID: PMC8930188 DOI: 10.3389/fmicb.2022.791563] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
Mukawa virus (MKWV), a novel tick-borne virus (TBV) of the genus Phlebovirus of family Phenuiviridae, has been firstly reported in Ixodes persulcatus in Japan. In this study, we made an epidemiological investigation in China to obtain the geographic distribution and genetic features of this virus outside Japan. We screened 1,815 adult ticks (665 I. persulcatus, 336 Dermacentor silvarum, 599 Haemaphysalis longicornis, 170 Rhipicephalus microplus, 45 Haemaphysalis concinna) and 805 wild small mammals collected from eight provinces. The positive rate of 6.77% (45/665, including 18 female and 27 male I. persulcatus) and 2.22% (1/45, 1 male H. concinna) were obtained from I. persulcatus and H. concinna in Heilongjiang province, respectively. No evidence of MKWV infection was found in other three tick species or any of the mammalian species. The virus can infect the Vero cells successfully, indicating the ability of MKWV to replicate in mammalian cells. A phylogenetic tree based on the nucleotide sequences of L, M, and S segments demonstrated that the Japanese MKWV variant, our two MKWV variants, and KURV were clustered with the members of the mosquito/sandfly-borne phleboviruses and distant from other tick-borne phenuiviruses. A phylogenetic analysis based on 895 bp partial L gene sequences (n = 46) showed that all MKWV sequences were separated into three lineages. Our results showed the presence of MKWV in I. persulcatus and H. concinna in northeast of China, highlighting the necessity of epidemiological study in wider regions. Due to the ability of MKWV to replicate in mammalian cells, the potential for zoonosis, and wide distribution of I. persulcatus and H. concinna in China, the important vectors of MKWV, further screening to more tick species, wild animals, domestic animals, and humans raises up practical significance.
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Affiliation(s)
- Yu-Na Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | | | - Heng Ding
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiao-Long Zhang
- Science and Technology Research Center of China Customs, Beijing, China
| | - Ning Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yun-Fa Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yue Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jin-Jin Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Pan-He Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Hao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jia-Fu Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Lan-Zheng Liu
- Shandong Center for Disease Control and Prevention, Jinan, China
| | - Meng-bin Yu
- Institute of NBC Defence, PLA Army, Beijing, China
| | - Gang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiao-Ai Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- *Correspondence: Xiao-Ai Zhang,
| | - Wei Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- Wei Liu, ,
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Fava NMN, Alves TS, Lopes MG, Labruna MB, Santos AQ, Cury MC. Occurrence and Molecular Identification of Hemoparasites in Wild Mammals Kept in Rehabilitation Centers in Brazil. Acta Parasitol 2022; 67:476-486. [PMID: 34797498 DOI: 10.1007/s11686-021-00492-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 10/28/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Hepatozoonosis and piroplasmosis are diseases caused by apicomplexan protozoa that affect different types of animals, including mammals. The present study aimed to evaluate the occurrence of Hepatozoon spp. and piroplasms in wild mammals kept in captivity in rehabilitation centers in the states of Minas Gerais and Goiás, Brazil. METHODS For this, blood samples from 152 animals were collected and analyzed by conventional optical microscopy and polymerase chain reaction (PCR). In addition, positive PCR samples were submitted to sequencing for molecular characterization of the specimens found. RESULTS Microscopic analysis revealed 53 of the 152 animals (28.3%) parasitized by piroplasms. No Hepatozoon sp. was observed. On the other hand, using the primers HepF300/HepR900 and Piro1F/Piro5R, both amplifying fragments of the 18S rDNA gene, eight animals (5.2%) were positive for Hepatozoon spp. and 40 (26.3%) for piroplasms. From the sequencing of the positive samples Hepatozoon canis, Hepatozoon felis, Theileria cervi, Theileria equi and Cytauxzoon felis were identified. In addition to the aforementioned hemoparasites, some animals were found parasitized by microfilaria. Such data ratify the presence of hemoparasites in captive wild animals, and are unprecedented in the two geographical regions covered by the present study. 19.7% of mammals harbored ectoparasites of the genera Amblyomma and Rhipicephalus. CONCLUSION Wild mammals are infected by several pathogens that can also infect domestic animals, some of them potentially zoonotic which can directly contribute to mortality and species reduction. Therefore, a deep understanding of the parasites, the hosts and the diseases is extremely necessary so that prevention, control and treatment measures are effectively applied.
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Affiliation(s)
- Natália M N Fava
- Laboratory of Parasitology and Molecular Biology of Parasites, Biomedical Science Institute, Federal University of Uberlândia (UFU), Amazonas Avenue w/n, Umuarama Campus, Uberlândia, Minas Gerais, 38400-902, Brazil.
| | - Talita Silva Alves
- Laboratory of Parasitology and Molecular Biology of Parasites, Biomedical Science Institute, Federal University of Uberlândia (UFU), Amazonas Avenue w/n, Umuarama Campus, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Marcos Gomes Lopes
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, Prof. Dr. Orlando Marques de Paiva Avenue, 87-Cidade Universitária, São Paulo, SP, Brazil
| | - Marcelo Bahia Labruna
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, Prof. Dr. Orlando Marques de Paiva Avenue, 87-Cidade Universitária, São Paulo, SP, Brazil
| | - André Quagliatto Santos
- Wild Animals Teaching and Research Laboratory (LAPAS), Faculty of Veterinary Medicine, Federal University of Uberlândia, Mato Grosso Avenue, 3289-Umuarama Campus, Uberlândia, MG, Brazil
| | - Márcia Cristina Cury
- Laboratory of Parasitology and Molecular Biology of Parasites, Biomedical Science Institute, Federal University of Uberlândia (UFU), Amazonas Avenue w/n, Umuarama Campus, Uberlândia, Minas Gerais, 38400-902, Brazil
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Segura JA, Saldarriaga LJ, Cerón JM, Osorio LR, Rueda ZV, Gutiérrez LA. Hard tick species (Acari: Ixodidae) and infestation in two livestock agroecosystems from Antioquia, Colombia. EXPERIMENTAL & APPLIED ACAROLOGY 2022; 86:235-255. [PMID: 35142954 DOI: 10.1007/s10493-022-00695-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
Tick infestation affects about 80% of livestock globally while transmitting various pathogens causing high economic losses. This study aimed to determine the degree of tick infestation in two regions, North and Middle Magdalena in Antioquia, Colombia, to identify the ixodid tick species found and the associated risk factors. A cross-sectional study was carried out in 48 farms distributed in six municipalities of Antioquia. Two paddocks and eight bovines per farm were evaluated to estimate tick infestation (adults, nymphs, and larvae). Tick species were identified through a morphological and molecular analysis based on partial sequences of data obtained from DNA molecular markers, two mitochondrial (16S rRNA and COI), and one genomic DNA gene (18S rRNA). A multivariate Poisson regression model was applied to estimate the associated risk factors with ticks in cattle. Rhipicephalus microplus, Amblyomma patinoi and Dermacentor nitens were present in the livestock agroecosystems in the Middle Magdalena region; the highest incidence of tick infestation in cows and paddocks was reported in the municipality of Puerto Triunfo. The livestock agroecosystems in Middle Magdalena were characterized by a higher presence of adult R. microplus in cattle. Larval infestation of R. microplus, followed by D. nitens, was also found in paddocks. The multivariate analysis showed that the origin of cattle was the main risk factor associated with the presence of ticks (i.e., when cattle came from outside the farm). Cattle movement between farms in Middle Magdalena can contribute to the spread of ticks in this region.
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Affiliation(s)
- Juan A Segura
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Calle 78B #72A-109, Bloque A-110, Medellín, Colombia
| | | | | | - Leonardo Ríos Osorio
- Grupo de Investigación Salud y Sostenibilidad, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Zulma V Rueda
- Grupo de Investigación en Salud Pública, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín, Colombia
| | - Lina A Gutiérrez
- Grupo Biología de Sistemas, Escuela de Ciencias de la Salud, Facultad de Medicina, Universidad Pontificia Bolivariana, Calle 78B #72A-109, Bloque A-110, Medellín, Colombia.
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Boyer PH, Barthel C, Mohseni-Zadeh M, Talagrand-Reboul E, Frickert M, Jaulhac B, Boulanger N. Impact of Different Anthropogenic Environments on Ticks and Tick-Associated Pathogens in Alsace, a French Region Highly Endemic for Tick-Borne Diseases. Microorganisms 2022; 10:microorganisms10020245. [PMID: 35208700 PMCID: PMC8877010 DOI: 10.3390/microorganisms10020245] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 12/04/2022] Open
Abstract
Ticks and tick-borne diseases have spread over the last decades. In parallel, the incidence in humans, accidental hosts for most of these zoonotic diseases, has increased. This epidemiological intensification can be associated with anthropogenic alterations of forest ecosystems and animal biodiversity, but also with socioeconomic changes. Their proliferation is largely due to human-induced effects on the factors that favor the circulation of these infectious agents. We selected different types of anthropogenic environments in Alsace, a region endemic for tick-borne diseases in France, to better understand the impact of human interventions on tick populations and tick-borne disease incidence. Ticks were collected in one golf course, three urban parks, one mid-mountain forest, and one alluvial forest that is currently part of a protected natural area. Ixodes ricinus was found primarily in humid vegetation, which is favorable for tick survival, such as grounds populated with trees and covered with leaf litter. We also observed that reforestation and high animal biodiversity in a protected area such as the alluvial forest led to a greater number of ticks, including both Ixodes ricinus and Dermacentor reticulatus, as well as to a higher prevalence of pathogens such as Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum, Borrelia miyamotoi, and Rickettsia raoulti.
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Affiliation(s)
- Pierre H. Boyer
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
| | - Cathy Barthel
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
| | - Mahsa Mohseni-Zadeh
- Hôpitaux Civils de Colmar, Service de Maladies Infectieuses, 39 Avenue de la Liberté, 68000 Colmar, France;
| | - Emilie Talagrand-Reboul
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
| | - Mathieu Frickert
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
| | - Benoit Jaulhac
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
- French National Reference Center for Borrelia, Centre Hospitalier Régional Universitaire, 67000 Strasbourg, France
| | - Nathalie Boulanger
- UR7290: Virulence Bactérienne Précoce: Groupe Borrelia, Institut de Bactériologie, FMTS, University of Strasbourg, 67000 Strasbourg, France; (P.H.B.); (C.B.); (E.T.-R.); (M.F.); (B.J.)
- French National Reference Center for Borrelia, Centre Hospitalier Régional Universitaire, 67000 Strasbourg, France
- Correspondence: ; Tel.: +33-3-69-55-14-49
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Perveen N, Muzaffar SB, Vijayan R, Al-Deeb MA. Microbial composition in Hyalomma anatolicum collected from livestock in the United Arab Emirates using next-generation sequencing. Parasit Vectors 2022; 15:30. [PMID: 35057842 PMCID: PMC8772180 DOI: 10.1186/s13071-021-05144-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 12/27/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Hyalomma anatolicum is a widely distributed tick species that acts as a vector transmitting tick-borne pathogens (TBPs) in livestock. Such pathogens affect the health of livestock and consequently reduce their productivity. Knowledge about the microbial communities (pathogens and endosymbionts) of ticks in the United Arab Emirates (UAE) is scarce. Therefore, the aim of the present study was to quantify microbial diversity in H. anatolicum using next-generation sequencing (NGS) technology. METHODS Hyalomma anatolicum ticks were collected from livestock in the emirates of Abu Dhabi, Dubai and Sharjah in the UAE during 2019. DNA was extracted from 175 male ticks sampled from livestock (n = 78) and subjected to NGS. The 16S rRNA gene was analyzed using the Illumina MiSeq platform to determine the bacterial communities. Principal coordinates analysis (PCA) was performed to identify patterns of diversity in the bacterial communities. RESULTS Twenty-six bacterial families with high relative abundance were identified, of which the most common were Staphylococcaceae, Francisellaceae, Corynebacteriaceae, Enterobacteriaceae, Moraxellaceae, Bacillaceae, Halomonadaceae, Xanthomonadaceae, Pseudomonadaceae, Enterococcaceae, Actinomycetaceae and Streptococcaceae. The diversity of the microbial communities in terms of richness and evenness was different at the three study locations, with the PCA showing clear clusters separating the microbial communities in ticks collected at Abu Dhabi, Dubai, and Sharjah. The presence of bacterial families harboring pathogenic genera showed that H. anatolicum could pose a potential threat to livestock and food security in the UAE. CONCLUSIONS The study is the first to document important data on the microbial communities associated with H. anatolicum in the UAE. This knowledge will facilitate a better understanding of the distribution pattern of microbes in livestock ticks in the UAE and, ultimately, will aid in deciphering the relationships between microbes and in the exploration of potential factors towards developing effective management strategies.
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Affiliation(s)
- Nighat Perveen
- Biology Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates
| | - Sabir Bin Muzaffar
- Biology Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates
| | - Ranjit Vijayan
- Biology Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates
| | - Mohammad Ali Al-Deeb
- Biology Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates
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Evaluation of two artificial infection methods of live ticks as tools for studying interactions between tick-borne viruses and their tick vectors. Sci Rep 2022; 12:491. [PMID: 35017574 PMCID: PMC8752753 DOI: 10.1038/s41598-021-04498-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/08/2021] [Indexed: 12/30/2022] Open
Abstract
Up to 170 tick-borne viruses (TBVs) have been identified to date. However, there is a paucity of information regarding TBVs and their interaction with respective vectors, limiting the development of new effective and urgently needed control methods. To overcome this gap of knowledge, it is essential to reproduce transmission cycles under controlled laboratory conditions. In this study we assessed an artificial feeding system (AFS) and an immersion technique (IT) to infect Ixodes ricinus ticks with tick-borne encephalitis (TBE) and Kemerovo (KEM) virus, both known to be transmitted predominantly by ixodid ticks. Both methods permitted TBEV acquisition by ticks and we further confirmed virus trans-stadial transmission and onward transmission to a vertebrate host. However, only artificial feeding system allowed to demonstrate both acquisition by ticks and trans-stadial transmission for KEMV. Yet we did not observe transmission of KEMV to mice (IFNAR-/- or BALB/c). Artificial infection methods of ticks are important tools to study tick-virus interactions. When optimally used under laboratory settings, they provide important insights into tick-borne virus transmission cycles.
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Weaver GV, Anderson N, Garrett K, Thompson AT, Yabsley MJ. Ticks and Tick-Borne Pathogens in Domestic Animals, Wild Pigs, and Off-Host Environmental Sampling in Guam, USA. Front Vet Sci 2022; 8:803424. [PMID: 35087891 PMCID: PMC8787080 DOI: 10.3389/fvets.2021.803424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/16/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Guam, a United States of America (USA) island territory in the Pacific Ocean, is known to have large populations of ticks; however, it is unclear what the risk is to wildlife and humans living on the island. Dog (Canis familiaris), cat (Felis catus), and wild pig (Sus scrofa) sentinels were examined for ticks, and environmental sampling was conducted to determine the ticks present in Guam and the prevalence of tick-borne pathogens in hosts. Methods and Results: From March 2019-November 2020, ticks were collected from environmental sampling, dogs, cats, and wild pigs. Blood samples were also taken from a subset of animals. A total of 99 ticks were collected from 27 environmental samples and all were Rhipicephalus sanguineus, the brown dog tick. Most ticks were collected during the dry season with an overall sampling success rate of 63% (95% CI: 42.4–80.6). 6,614 dogs were examined, and 12.6% (95% CI: 11.8–13.4) were infested with at least one tick. One thousand one hundred twelve cats were examined, and six (0.54%; 95% CI: 0.20–1.1) were found with ticks. Sixty-four wild pigs were examined and 17.2% (95% CI: 9.5–27.8) had ticks. In total, 1,956 ticks were collected and 97.4% of ticks were R. sanguineus. A subset of R. sanguineus were determined to be the tropical lineage. The other tick species found were Rhipicephalus microplus (0.77%), Amblyomma breviscutatum (0.77 %), and a Haemaphysalis sp. (0.51%). Blood samples from 136 dogs, four cats, and 64 wild pigs were tested using polymerase chain reaction (PCR) and DNA sequencing methods. Five different tick-borne pathogens with the following prevalences were found in dogs: Anaplasma phagocytophilum 5.9% (95% CI: 2.6–11.3); Anaplasma platys 19.1% (95% CI: 12.9–26.7); Babesia canis vogeli 8.8% (95% CI: 4.6–14.9); Ehrlichia canis 12.5% (95% CI: 7.5–19.3); Hepatozoon canis 14.7% (95% CI: 9.2–28.8). E. canis was detected in one cat, and no tick-borne pathogens were detected in wild pigs. Overall, 43.4% (95% CI: 34.9–52.1) of dogs had at least one tick-borne pathogen. Serological testing for antibodies against Ehrlichia spp. and Anaplasma spp. showed prevalences of 14.7% (95% CI: 9.2–28.8) and 31.6% (95% CI: 23.9–40), respectively. Conclusion: Four different tick species were found in Guam to include a Haemaphysalis sp., which is a previously unreported genus for Guam. Dogs with ticks have a high prevalence of tick-borne pathogens which makes them useful sentinels.
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Affiliation(s)
- Genevieve V. Weaver
- Wise Owl Animal Hospital, Micronesian Exotic Specialty Services, Tamuning, GU, United States
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
- *Correspondence: Genevieve V. Weaver
| | - Neil Anderson
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Kayla Garrett
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, United States
| | - Alec T. Thompson
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
| | - Michael J. Yabsley
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, United States
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Rafiq N, Naseem M, Kakar A, Shirazi JH, Masood MI. A preliminary evaluation of tick cement-cone protein extract for a vaccine against Hyalomma infestation. IRANIAN JOURNAL OF VETERINARY RESEARCH 2022; 23:255-264. [PMID: 36425603 PMCID: PMC9681977 DOI: 10.22099/ijvr.2022.43366.6328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/14/2022] [Accepted: 06/18/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Vaccines have been widely exploited to prevent tick-borne infections in cattle. Most vaccines have faced failure in the field because of inconsistency in an immune response. It is presumed that the cement-cone proteins of ticks that participate in the acquisition of blood meal for ticks possess strong immune-stimulating properties and, hence, could be a useful candidate in vaccine development. AIMS We evaluated cement-cone proteins of tick Hyalomma anatolicum as a vaccine candidate against infestations of H. anatolicum and H. aegyptium in cattle. METHODS The cement-cone proteins were extracted from H. anatolicum to develop stage-reactive and immunogenic cross-reactive vaccine against the infestation of two species of ticks H. anatolicum and H. aegyptium. The immune response of the vaccine was tested against cement-cone proteins starved, partially fed, and richly fed ticks. RESULTS The findings of the present study demonstrated the cross-reactivity among the two species of ticks that belonged to the same genus (Hyalomma). The antigenic similarity between the two ticks species suggests that a common antigen may possibly be suitable for a vaccine against the two different species of ticks. The results have also indicated that the 23 kDa cement-cone protein of H. anatolicum and H. aegyptium may be responsible for the induction, or elicitation of immunogenic, common stage reactive, and cross-reactive host immune responses with consistent intensity throughout the life stages of ticks. CONCLUSION The vaccine based upon cement-cone proteins of ticks may be a useful deterrent against tick-borne infections in cattle in countries like Pakistan.
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Affiliation(s)
- N. Rafiq
- Department of Zoology, SBK Women University, Quetta-87300, Pakistan
| | - M. Naseem
- Department of Zoology, University of Balochistan, Quetta-87300, Pakistan
| | - A. Kakar
- Department of Zoology, University of Balochistan, Quetta-87300, Pakistan
| | - J. H. Shirazi
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur-63100, Pakistan
| | - M. I. Masood
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences Lahore-54000, Pakistan, and Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Saarbrücken, D-66123, Germany, and Working Group Enteric Nervous System, University of Applied Sciences Kaiserslautern, Campus Zweibrücken, 66482, Germany
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Ledwaba MB, Nozipho K, Tembe D, Onyiche TE, Chaisi ME. Distribution and prevalence of ticks and tick-borne pathogens of wild animals in South Africa: A systematic review. CURRENT RESEARCH IN PARASITOLOGY & VECTOR-BORNE DISEASES 2022; 2:100088. [PMID: 35601607 PMCID: PMC9114622 DOI: 10.1016/j.crpvbd.2022.100088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/21/2022] [Accepted: 04/20/2022] [Indexed: 12/02/2022]
Abstract
Ticks are significant ectoparasites of animals and humans. Published data indicate that most vectors that transmit livestock and human pathogens in sub-Saharan Africa, are native to the region and originate from wild animals. Currently, there is a paucity of information on the role of wild animals on the epidemiology of zoonotic tick-borne pathogens in South Africa. This systematic review focuses on the distribution of ticks and prevalence of tick-borne pathogens in different wild animals in South Africa to identify potential reservoir hosts and possible hotspots for emergence of novel tick-borne pathogens. Following several screening processes, 38 peer-reviewed studies published from 1970 to 2021, were deemed eligible. The studies reported on ticks collected from 63 host species of 21 host families, mostly Canidae, Felidae, Bovidae and Muridae. A total of 49 tick species of nine genera, i.e. Amblyomma, Dermacentor, Haemaphysalis, Hyalomma, Ixodes, Margaropus, Nuttalliella, Rhipicentor and Rhipicephalus, were reported. Nine tick species, i.e. Amblyomma marmoreum, Am. hebraeum, Haemaphysalis elliptica, Hyalomma truncatum, I. rubicundus, Rh. appendiculatus, Rh. (B.) decoloratus, Rh. evertsi evertsi and Rh. simus were the most commonly reported. Pathogens of the genera Anaplasma, Babesia, Hepatozoon and Theileria were identified in the wild animals. This review provides more insight on the ecology of ticks and tick-borne pathogens of wild animals in South Africa and gives useful information for predicting their future spread. It also demonstrates that wild animals habour a diverse range of tick species. This level of diversity entails a similarly high potential for emergence of novel tick-borne pathogens. The review further indicates that wild animals in South Africa are sentinels of tick-borne protozoans of veterinary importance and some bacterial pathogens as most ticks they habour are known vectors of pathogens of domestic animals and humans. However, studies on potential tick-borne zoonoses are under-represented and should be included in future epidemiological surveys, especially in the light of climate change and other anthropogenic threats which might result in the emergence of novel tick-borne pathogens. Wild animals in South Africa harbor a wide range of tick species of veterinary and medical importance. Forty-nine tick species belonging to 9 genera were reported from 63 wild host species of 21 families. Majority of the ticks occur throughout all nine provinces of South Africa. Wildlife in South Africa are sentinels of tick-borne protozoans and some bacterial pathogens of veterinary importance. The review also emphasizes the host preference of the ticks and the pathogens they transmit.
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Affiliation(s)
- Maphuti B. Ledwaba
- Foundational Research and Services, South African National Biodiversity Institute, P.O. Box 754, Pretoria 0001, South Africa
- Corresponding author.
| | - Khumalo Nozipho
- Foundational Research and Services, South African National Biodiversity Institute, P.O. Box 754, Pretoria 0001, South Africa
| | - Danisile Tembe
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Durban 4001, South Africa
| | - ThankGod E. Onyiche
- Department of Veterinary Parasitology and Entomology, University of Maiduguri, P. M. B. 1069, Maiduguri 600230, Nigeria
| | - Mamohale E. Chaisi
- Foundational Research and Services, South African National Biodiversity Institute, P.O. Box 754, Pretoria 0001, South Africa
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
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Dhiman R, Singh P, Kumar P. Kyasanur forest disease and climatic attributes in India. J Vector Borne Dis 2022; 59:79-85. [DOI: 10.4103/0972-9062.331408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Cunze S, Glock G, Klimpel S. Spatial and temporal distribution patterns of tick-borne diseases (Tick-borne Encephalitis and Lyme Borreliosis) in Germany. PeerJ 2021; 9:e12422. [PMID: 34993011 PMCID: PMC8675256 DOI: 10.7717/peerj.12422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 10/11/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND In the face of ongoing climate warming, vector-borne diseases are expected to increase in Europe, including tick-borne diseases (TBD). The most abundant tick-borne diseases in Germany are Tick-Borne Encephalitis (TBE) and Lyme Borreliosis (LB), with Ixodes ricinus as the main vector. METHODS In this study, we display and compare the spatial and temporal patterns of reported cases of human TBE and LB in relation to some associated factors. The comparison may help with the interpretation of observed spatial and temporal patterns. RESULTS The spatial patterns of reported TBE cases show a clear and consistent pattern over the years, with many cases in the south and only few and isolated cases in the north of Germany. The identification of spatial patterns of LB disease cases is more difficult due to the different reporting practices in the individual federal states. Temporal patterns strongly fluctuate between years, and are relatively synchronized between both diseases, suggesting common driving factors. Based on our results we found no evidence that weather conditions affect the prevalence of both diseases. Both diseases show a gender bias with LB bing more commonly diagnosed in females, contrary to TBE being more commonly diagnosed in males. CONCLUSION For a further investigation of of the underlying driving factors and their interrelations, longer time series as well as standardised reporting and surveillance system would be required.
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Affiliation(s)
- Sarah Cunze
- Institute of Ecology, Evolution and Diversity, Johann Wolfgang Goethe Universität Frankfurt am Main, Frankfurt am Main, Hesse, Germany
| | - Gustav Glock
- Institute of Ecology, Evolution and Diversity, Johann Wolfgang Goethe Universität Frankfurt am Main, Frankfurt am Main, Hesse, Germany
| | - Sven Klimpel
- Institute of Ecology, Evolution and Diversity, Johann Wolfgang Goethe Universität Frankfurt am Main, Frankfurt am Main, Hesse, Germany
- Biodiversity and Climate Research Centre, Senckenberg Nature Research Society, Frankfurt am Main, Hesse, Germany
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Peter SG, Kariuki HW, Aboge GO, Gakuya DW, Maingi N, Mulei CM. Prevalence of Ticks Infesting Dairy Cattle and the Pathogens They Harbour in Smallholder Farms in Peri-Urban Areas of Nairobi, Kenya. Vet Med Int 2021; 2021:9501648. [PMID: 34925753 PMCID: PMC8683169 DOI: 10.1155/2021/9501648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/19/2021] [Indexed: 11/17/2022] Open
Abstract
This study aimed at determining the tick species infesting dairy cattle in Nairobi, Kenya, and the pathogens they harbour. While ticks are well-known vectors of major bacterial pathogens of both veterinary importance and public health importance, few studies have investigated the range of the tick species and the associated pathogens, especially present in unique dairy production systems, which compromise animal welfare, such as those in peri-urban areas. A cross-sectional study was undertaken involving 314 randomly selected dairy cattle in 109 smallholder farms. Each animal was examined for attached ticks followed by morphological tick identification at the species level. Genomic DNA was extracted from each of the ticks, and 16S rDNA gene was amplified for pathogen identification. Sequencing of the amplicons and subsequent BLASTn analysis, multiple sequence alignment, and phylogenetic reconstruction were performed to confirm the species of the pathogens. Sixty-six (21.0%) of the cattle examined had ticks. A total of 94 adult ticks were found on the cattle, and of these, 63 (67.0%), 18 (19.1%), and 13 (13.8%) were in the genera Rhipicephalus, Amblyomma, and Hyalomma, respectively. Twelve tick species in Rhipicephalus genus and two in Amblyomma and Hyalomma genera were identified. Although Rh. decoloratus was the most prevalent tick (24.5% (23/94)), the emerging Rh. microplus (6.4% (6/94)) was also identified. The DNA of Rickettsia was detected in the ticks, with Rickettsia conorii in H. rufipes and A. variegatum, and Rickettsia aeschlimannii in Rh. microplus and H. rufipes, while Ehrlichia ruminantium and E. canis were in A. variegatum. In conclusion, the study reported a wide range of tick species present in the study area including Rhipicephalus microplus, which is an emerging tick species in parts of Kenya. The ticks harboured DNA of Rickettsia and Ehrlichia, highlighting possible animal and human health concerns. Hence, effective tick control strategies remain paramount to prevent potential diseases associated with the harboured pathogens.
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Affiliation(s)
- Shepelo Getrude Peter
- Department of Clinical Studies, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Hellen Wambui Kariuki
- Department of Microbiology, Faculty of Health Sciences, University of Nairobi, P.O. Box 19676-00202, Nairobi, Kenya
| | - Gabriel Oluga Aboge
- Department of Public Health Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Daniel Waweru Gakuya
- Department of Clinical Studies, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Ndichu Maingi
- Department of Veterinary Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Charles Matiku Mulei
- Department of Clinical Studies, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
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