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Vongphayloth K, Randrianambinintsoa FJ, Lakeomany K, Phommavanh N, Pongsanarm T, Vungkyly V, Luangamath P, Chonephetsarath S, Brey PT, Depaquit J. A study on the diversity of phlebotomine sand flies (Diptera, Psychodidae) in karstic limestone areas in Vientiane Province, Laos, with a description of two new species of Sergentomyia França and & Parrot. Parasit Vectors 2024; 17:385. [PMID: 39261872 PMCID: PMC11389125 DOI: 10.1186/s13071-024-06444-w] [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: 06/01/2024] [Accepted: 08/10/2024] [Indexed: 09/13/2024] Open
Abstract
BACKGROUND Southeast Asia is well known as a hotspot of biodiversity. However, very little is known about cave-dwelling hematophagous insects that are medically important. Taxonomic knowledge and ecology of phlebotomine sand flies are very poorly studied in Laos, as well as in other countries in the region. Herein, we report species diversity data and some notes on the ecology of the detected species from these karstic limestone areas of Laos. METHODS Phlebotomine sand flies were collected using Centers for Disease Control and Prevention (CDC) light traps from limestone cave locations in three districts of Vientiane Province, Laos. Both morphological and molecular techniques were used for sand fly identification. Species diversity and abundance were analyzed according to sites, locations, collection seasons, and trapping positions. RESULTS A total of 6564 sand flies, of which 5038 were females and 1526 were males, were morphologically identified into 20 species belonging to five genera (Chinius, Idiophlebotomus, Phlebotomus, Sergentomyia, and Grassomyia). The most abundant species were Chinius eunicegalatiae, Phlebotomus stantoni, Sergentomyia hivernus, Se. siamensis, and Idiophlebotomus longiforceps. Cytochrome b analysis results supported the morphological identification and revealed that Se. siamensis was separated from other members of the Se. barraudi group. Two new species, Se. dvoraki n. sp. and Se. marolii n. sp., were described. Sand fly density was generally high except in a cave in Vangvieng, with species richness ranging from 14 to 18 across different caves. Outside caves had higher species richness (R = 20) and diversity (H = 2.50) than cave entrances (R = 18, H = 2.41) and interiors (R = 16, H = 2.13). Seasonal variations showed high sand fly density in Feung and Hinheup during both dry and rainy seasons, while Vangvieng had a notable decrease in density during the dry season (D = 6.29). CONCLUSIONS This study revealed that the diversity of phlebotomine sand fly fauna in Laos, particularly in karstic limestone areas, is greater than previously known. However, the taxonomic status of many species in Laos, as well as Southeast Asia, still needs more in-depth study using both morphological characters and molecular methods. Many species could be found from inside, at the entrance, and outside of caves, indicating a wide range of host-seeking behavior or possible natural breeding in the karstic cave areas.
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Affiliation(s)
- Khamsing Vongphayloth
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR.
- Université de Reims Champagne-Ardenne, Univ Rouen Normandie, Normandie Univ, ESCAPE, Reims, France.
| | - Fano José Randrianambinintsoa
- Université de Reims Champagne-Ardenne, Univ Rouen Normandie, Normandie Univ, ESCAPE, Reims, France
- USC ANSES Petard, Reims, France
| | - Khaithong Lakeomany
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Nothasine Phommavanh
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Tavun Pongsanarm
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Veaky Vungkyly
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Phonesavanh Luangamath
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Somsanith Chonephetsarath
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Paul T Brey
- Laboratory of Vector-Borne Diseases, Institut Pasteur du Laos, Samsenthai Road, Ban Kao-Gnot, Sisattanak District, 3560, Vientiane, Lao PDR
| | - Jérôme Depaquit
- Université de Reims Champagne-Ardenne, Univ Rouen Normandie, Normandie Univ, ESCAPE, Reims, France.
- USC ANSES Petard, Reims, France.
- Laboratoire de Parasitologie-Mycologie, Pôle de Biologie Territoriale, CHU, Reims, France.
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Petersen V, Santana M, Karina-Costa M, Nachbar JJ, Martin-Martin I, Adelman ZN, Burini BC. Aedes ( Ochlerotatus) scapularis, Aedes japonicus japonicus, and Aedes ( Fredwardsius) vittatus (Diptera: Culicidae): Three Neglected Mosquitoes with Potential Global Health Risks. INSECTS 2024; 15:600. [PMID: 39194805 DOI: 10.3390/insects15080600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 08/29/2024]
Abstract
More than 3550 species of mosquitoes are known worldwide, and only a fraction is involved in the transmission of arboviruses. Mosquitoes in sylvatic and semi-sylvatic habitats may rapidly adapt to urban parks and metropolitan environments, increasing human contact. Many of these mosquitoes have been found naturally infected with arboviruses from the Alphaviridae, Flaviviridae, and Bunyaviridae families, with many being the cause of medically important diseases. However, there is a gap in knowledge about the vector status of newly invasive species and their potential threat to human and domestic animal populations. Due to their rapid distribution, adaptation to urban environments, and anthropophilic habits, some neglected mosquito species may deserve more attention regarding their role as secondary vectors. Taking these factors into account, we focus here on Aedes (Ochlerotatus) scapularis (Rondani), Aedes japonicus japonicus (Theobald), and Aedes (Fredwardsius) vittatus (Bigot) as species that have the potential to become important disease vectors. We further discuss the importance of these neglected mosquitoes and how factors such as urbanization, climate change, and globalization profoundly alter the dynamics of disease transmission and may increase the participation of neglected species in propagating diseases.
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Affiliation(s)
- Vivian Petersen
- Florida Medical Entomology Laboratory, University of Florida, Vero Beach, FL 32962, USA
| | - Micael Santana
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Sao Paulo 05508-000, Brazil
| | - Maria Karina-Costa
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Sao Paulo 05508-000, Brazil
| | - Julia Jardim Nachbar
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Sao Paulo 05508-000, Brazil
| | - Ines Martin-Martin
- National Center for Microbiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Zach N Adelman
- Department of Entomology and Agrilife Research, Texas A&M University, College Station, TX 77843, USA
| | - Bianca C Burini
- Florida Medical Entomology Laboratory, University of Florida, Vero Beach, FL 32962, USA
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Mahmoud HYAH, Tanaka T, Ali AO, Emeish WFA. Molecular detection and characterization of Anaplasma ovis, Theileria ovis, and Theileria lestoquardi in sheep and goats in Luxor, Egypt. BMC Vet Res 2024; 20:260. [PMID: 38886742 PMCID: PMC11181633 DOI: 10.1186/s12917-024-04109-5] [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: 06/02/2023] [Accepted: 05/31/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Tick-borne diseases cause economically significant losses to animal production globally, and anaplasmosis and theileriosis are associated with the greatest losses. However, the spread of the relevant pathogens in flocks of domesticated animals in southern Egypt is little understood. Accordingly, in this study, we aimed to determine the prevalences of Anaplasma ovis, Theileria ovis, and Theileria lestoquardi in southern Egyptian sheep and goats through blood tests, and to make a molecular characterization of the A. ovis detected in sheep targeting a specific gene. RESULTS We collected blood samples collected from 300 sheep and goats (n=150 /species) in Luxor Province in southern Egypt, and analyzed them for the presence of A. ovis, T. ovis and T. lestoquardi with screening by conventional and nested PCR targeting the msp4 and msp5, 18S rRNA, and merozoite surface protein genes. For A. ovis 140/300 samples (46.66%) were positive overall, with 90/150 (60%) and 50/150 (33.33%) positive samples in sheep and goats, respectively. Two major surface protein genes of A. ovis, msp4 and msp5, were sequenced using DNA extracted from sheep and goat blood samples, for phylogenetic analysis and genotyping. The msp4 gene sequence revealed no significant genetic diversity, to contrast to data on A. ovis strains from other countries. For T. lestoquardi, 8/150 (5.33%) samples were positive in sheep, but no samples were positive in goats (0%). For T. ovis, 32/150 (21.33%) samples were positive in sheep, but no samples were positive in goats (0%). Sequencing targeting the merozoite surface protein gene for T. lestoquardi and the small subunit ribosomal RNA gene for T. ovis revealed no significant genetic diversity in the study, another contrast to data on A. ovis strains from other countries. CONCLUSION This study provides valuable data on phylogenetic and molecular classifications of A. ovis, T. ovis and T. lestoquardi found in southern Egyptian sheep and goats. It also represents the first report on detection and molecular characterization of T. lestoquardi in southern Egyptian sheep based on the specific merozoite surface protein gene, thus providing valuable data for molecular characterization of this pathogen in southern Egypt.
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Affiliation(s)
- Hassan Y A H Mahmoud
- Division of Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt.
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, 890-0065, Japan
| | - Alsagher O Ali
- Division of Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
| | - Walaa F A Emeish
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
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Cui N, Su L, Wang Z, Hornok S, Tang L, Yang M, Zhang Y, Zhao G, Wang Y. First identification of Cytauxzoon manul in Eurasian lynx (Lynx lynx) in northwestern China. Parasit Vectors 2024; 17:249. [PMID: 38845044 PMCID: PMC11157914 DOI: 10.1186/s13071-024-06326-1] [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: 04/01/2024] [Accepted: 05/15/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Multiple species of the genera Cytauxzoon and Hepatozoon can infect wild felines, but the diversity of these and other apicomplexan parasites in Eurasian lynx is scarcely known. The aim of this study was to detect Cytauxzoon and Hepatozoon species with molecular methods in Eurasian lynxes and their ticks in northwestern China. METHODS DNA was extracted from the heart, liver, spleen, lung, and kidney samples of three Eurasian lynxes as well as from their five ixodid ticks. These DNA samples were screened with polymerase chain reactions (PCRs) for Cytauxzoon with the partial cytochrome b gene (CytB), cytochrome c oxidase subunit I gene (COI), and small subunit ribosomal RNA gene (18S rRNA), and Hepatozoon with three different fragments of small subunit ribosomal RNA gene (18S rRNA). PCR products were sequenced, aligned, and phylogenetically analyzed. RESULTS One adult female of Eurasian lynx (#1, adult female) was co-infected with Cytauxzoon manul and Hepatozoon felis genotype I, while an adult male lynx (#2) was infected with C. manul. Interestingly, H. felis genotype I was both detected in a male cub (#3) and two out of five infesting Hyalomma asiaticum ticks. CONCLUSIONS For the first time, Cytauxzoon manul is reported here from Eurasian lynx. In addition, H. felis has not been known to occur in this host species in China and Central Asia. Thus, the findings of this study extend our knowledge on the geographical distribution and host range of these haemoprotozoan parasites. Moreover, this is also the first evidence of C. manul and H. felis co-infection in Eurasian lynx.
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Affiliation(s)
- Nannan Cui
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security of the XPCC, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Lixin Su
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security of the XPCC, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Ziqi Wang
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security of the XPCC, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Sándor Hornok
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- HUN-REN-UVMB Climate Change: New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
| | - Lijuan Tang
- Bayingolin Vocational and Technical College, Korla, 841000, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Meihua Yang
- Department of Forest, College of Agriculture, Shihezi University, Shihezi, 832002, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Yujiang Zhang
- Xinjiang Key Laboratory of Vector-Borne Infectious Diseases, Xinjiang Center for Disease Control and Prevention, Urumqi, 830002, People's Republic of China
| | - Guoyu Zhao
- Xinjiang Key Laboratory of Vector-Borne Infectious Diseases, Xinjiang Center for Disease Control and Prevention, Urumqi, 830002, People's Republic of China
| | - Yuanzhi Wang
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security of the XPCC, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang Uygur Autonomous Region, People's Republic of China.
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Parodi P, Bazzano V, Armúa-Fernández MT, Félix ML, Carvalho LA, Freire J, Venzal JM. Molecular survey of Piroplasmida, Hepatozoon spp. and Anaplasmataceae in anemic and thrombocytopenic dogs from Uruguay. Vet Parasitol Reg Stud Reports 2024; 51:101027. [PMID: 38772643 DOI: 10.1016/j.vprsr.2024.101027] [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: 02/28/2024] [Revised: 04/08/2024] [Accepted: 04/17/2024] [Indexed: 05/23/2024]
Abstract
Canine tick-borne diseases, such as babesiosis, rangeliosis, hepatozoonosis, anaplasmosis and ehrlichiosis, are of veterinarian relevance, causing mild or severe clinical cases that can lead to the death of the dog. The aim of this study was detecting tick-borne protozoan and rickettsial infections in dogs with anemia and/or thrombocytopenia in Uruguay. A total of 803 domestic dogs were evaluated, and 10% were found positive (detected by PCR) at least for one hemoparasite. Sequence analysis confirmed the presence of four hemoprotozoan species: Rangelia vitalii, Babesia vogeli, Hepatozoon canis and Hepatozoon americanum, and the rickettsial Anaplasma platys. The most detected hemoparasite was R. vitalii, followed by H. canis and A. platys. This is the first report of B. vogeli in Uruguay and the second report of H. americanum in dogs from South America. The results highlight the importance for veterinarians to include hemoparasitic diseases in their differential diagnosis of agents causing anemia and thrombocytopenia.
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Affiliation(s)
- Pablo Parodi
- Instituto Nacional de Investigación Agropecuaria, Plataforma de Salud Animal, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay
| | - Valentin Bazzano
- Laboratorio de Vectores y Enfermedades Transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto, Uruguay
| | - María T Armúa-Fernández
- Unidad de Parasitología Veterinaria, Departamento de Patobiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - María L Félix
- Laboratorio de Vectores y Enfermedades Transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto, Uruguay
| | - Luis A Carvalho
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
| | - Jorge Freire
- Laclivet, Laboratorio Clínico Veterinario, Montevideo, Uruguay
| | - José M Venzal
- Laboratorio de Vectores y Enfermedades Transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto, Uruguay.
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Abdoli A, Olfatifar M, Badri M, Zaki L, Bijani B, Pirestani M, Hatam‐Nahavandi K, Eslahi AV, Karanis P. A global systematic review and meta-analysis on the babesiosis in dogs with special reference to Babesia canis. Vet Med Sci 2024; 10:e1427. [PMID: 38695207 PMCID: PMC11063922 DOI: 10.1002/vms3.1427] [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: 06/03/2023] [Revised: 02/16/2024] [Accepted: 03/10/2024] [Indexed: 05/04/2024] Open
Abstract
BACKGROUND Canine babesiosis is a clinically significant tick-transmitted disease caused by several species of the intraerythrocytic protozoan parasite Babesia, which result in a wide range of clinical manifestations, from mild, transient infection to serious disease and even death. OBJECTIVES The current study aimed to estimate the global prevalence and associated risk factors of Babesia in dogs. METHODS Multiple databases (PubMed, Scopus, ProQuest, Web of Science and Google Scholar) were searched for relevant literature published from January 2000 up to December 2022. The statistical analyses were performed based on the R software (version 3.6) meta-package. RESULTS Out of 23,864 publications, 229 studies met the inclusion criteria. The pooled prevalence of canine babesiosis was 0.120 (95% CI; 0.097-0.146). The highest pooled prevalence was found in Europe (0.207, 95% CI; 0.097-0.344). Among several species, Babesia canis was the most prevalent parasite (0.216, 95% CI; 0.056-0.441). The highest pooled prevalence of Babesia in dogs was observed in the summer season (0.097, 95% CI; 0.040-0.174). CONCLUSIONS Regular screening and appropriate control strategies are recommended for the prevention of transmission of tick-borne disease transmission among dogs.
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Affiliation(s)
- Amir Abdoli
- Zoonoses Research CenterJahrom University of Medical SciencesJahromIran
- Department of Parasitology and MycologyJahrom University of Medical SciencesJahromIran
| | - Meysam Olfatifar
- Gastroenterology and Hepatology Diseases Research CenterQom University of Medical SciencesQomIran
| | - Milad Badri
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Leila Zaki
- Department of Parasitology and EntomologyFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Behzad Bijani
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Majid Pirestani
- Department of Parasitology and EntomologyFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Kareem Hatam‐Nahavandi
- Department of Parasitology and MycologySchool of MedicineIranshahr University of Medical SciencesIranshahrIran
| | - Aida Vafae Eslahi
- Medical Microbiology Research CenterQazvin University of Medical SciencesQazvinIran
| | - Panagiotis Karanis
- Medical Faculty and University HospitalUniversity of CologneCologneGermany
- Department of Basic and Clinical SciencesUniversity of Nicosia, Medical School, Anatomy CentreNicosiaCyprus
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Zhong Z, Wang K, Wang J. Tick symbiosis. CURRENT OPINION IN INSECT SCIENCE 2024; 62:101163. [PMID: 38244689 DOI: 10.1016/j.cois.2024.101163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/29/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
As obligate blood-feeders, ticks serve as vectors for a variety of pathogens that pose threats on both human and livestock health. The microbiota that ticks harbor play important roles in influencing tick nutrition, development, reproduction, and vector. These microbes also affect the capacity of ticks to transmit pathogens (vector competence). Therefore, comprehending the functions of tick microbiota will help in developing novel and effective tick control strategies. Here, we summarize the effects of main tick symbiotic bacteria on tick physiology and vector competency.
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Affiliation(s)
- Zhengwei Zhong
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China
| | - Kun Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China
| | - Jingwen Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China.
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Tukmechi A, Ownagh A, Enferadi A, Khademi P. First molecular detection of Francisella tularensis in turtle ( Testudo graeca) and ticks ( Hyalomma aegyptium) in Northwest of Iran. Int J Parasitol Parasites Wildl 2024; 23:100892. [PMID: 38192304 PMCID: PMC10772711 DOI: 10.1016/j.ijppaw.2023.11.005] [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: 09/14/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 01/10/2024]
Abstract
Francisella tularensis, causative agent of tularemia, is a contagious zoonotic ailment. This study was aimed to molecularly detect F. tularensis in tortoise blood (n = 100) and ticks (n = 100) collected in the West Azerbaijan province, Iran suing a 16SrRNA gene of the Francisella genus through employment of the Nested-PCR technique. The identified ticks were s Hyalomma aegyptium by morphological analysis. Seven percent (with a 95% CI: 3.5%-13.75%) of animal blood samples yielded positive results for the presence of the Francisella. Meanwhile, the Francisella was identified in tick samples at a rate of fifteen percent (15%) (with a 95% CI: 9%-23%). The samples containing positive results were specifically classified as F. tularensis subsp. holarctica. The samples were taken from ticks belonging to the H. aegyptium species that were gathered in Oshnavieh, southern part of West Azerbaijan province, Iran. This research was aimed to validate the existence of F. tularensis in ticks found within the West Azerbaijan province. Consequently, it is vital to acknowledge the potential of these ticks to transmit the bacteria to both livestock and humans through tick bites in this specific area.
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Affiliation(s)
- Amir Tukmechi
- Department of Microbiology, Urmia University, Urmia, Iran
| | | | - Ahmad Enferadi
- Department of Microbiology, Urmia University, Urmia, Iran
| | - Peyman Khademi
- Department of Microbiology, Urmia University, Urmia, Iran
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Zhou X, Zhang Q, Chen JH, Dai JF, Kassegne K. Revisiting the antigen markers of vector-borne parasitic diseases identified by immunomics: identification and application to disease control. Expert Rev Proteomics 2024; 21:205-216. [PMID: 38584506 DOI: 10.1080/14789450.2024.2336994] [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: 09/05/2023] [Accepted: 03/03/2024] [Indexed: 04/09/2024]
Abstract
INTRODUCTION Protein microarray is a promising immunomic approach for identifying biomarkers. Based on our previous study that reviewed parasite antigens and recent parasitic omics research, this article expands to include information on vector-borne parasitic diseases (VBPDs), namely, malaria, schistosomiasis, leishmaniasis, babesiosis, trypanosomiasis, lymphatic filariasis, and onchocerciasis. AREAS COVERED We revisit and systematically summarize antigen markers of vector-borne parasites identified by the immunomic approach and discuss the latest advances in identifying antigens for the rational development of diagnostics and vaccines. The applications and challenges of this approach for VBPD control are also discussed. EXPERT OPINION The immunomic approach has enabled the identification and/or validation of antigen markers for vaccine development, diagnosis, disease surveillance, and treatment. However, this approach presents several challenges, including limited sample size, variability in antigen expression, false-positive results, complexity of omics data, validation and reproducibility, and heterogeneity of diseases. In addition, antigen involvement in host immune evasion and antigen sensitivity/specificity are major issues in its application. Despite these limitations, this approach remains promising for controlling VBPD. Advances in technology and data analysis methods should continue to improve candidate antigen identification, as well as the use of a multiantigen approach in diagnostic and vaccine development for VBPD control.
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Affiliation(s)
- Xia Zhou
- MOE Key Laboratory of Geriatric Diseases and Immunology, School of Biology & Basic Medical Science, Suzhou Medical College of Soochow University, Suzhou, China
| | - Qianqian Zhang
- Institute of Biology and Medical Sciences, Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, China
| | - Jun-Hu Chen
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention (Chinese Center for Tropical Diseases Research); National Health Commission of the People's Republic of China (NHC) Key Laboratory of Parasite and Vector Biology; World Health Organization (WHO) Collaborating Center for Tropical Diseases; National Center for International Research on Tropical Diseases, Shanghai, People's Republic of China
- Hainan Tropical Diseases Research Center (Hainan Sub-Center, Chinese Center for Tropical Diseases Research), Haikou, China
| | - Jian-Feng Dai
- Institute of Biology and Medical Sciences, Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, China
| | - Kokouvi Kassegne
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- One Health Center, Shanghai Jiao Tong University, Shanghai, China
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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: 1] [Impact Index Per Article: 1.0] [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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11
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Cuthbert RN, Darriet F, Chabrerie O, Lenoir J, Courchamp F, Claeys C, Robert V, Jourdain F, Ulmer R, Diagne C, Ayala D, Simard F, Morand S, Renault D. Invasive hematophagous arthropods and associated diseases in a changing world. Parasit Vectors 2023; 16:291. [PMID: 37592298 PMCID: PMC10436414 DOI: 10.1186/s13071-023-05887-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/18/2023] [Indexed: 08/19/2023] Open
Abstract
Biological invasions have increased significantly with the tremendous growth of international trade and transport. Hematophagous arthropods can be vectors of infectious and potentially lethal pathogens and parasites, thus constituting a growing threat to humans-especially when associated with biological invasions. Today, several major vector-borne diseases, currently described as emerging or re-emerging, are expanding in a world dominated by climate change, land-use change and intensive transportation of humans and goods. In this review, we retrace the historical trajectory of these invasions to better understand their ecological, physiological and genetic drivers and their impacts on ecosystems and human health. We also discuss arthropod management strategies to mitigate future risks by harnessing ecology, public health, economics and social-ethnological considerations. Trade and transport of goods and materials, including vertebrate introductions and worn tires, have historically been important introduction pathways for the most prominent invasive hematophagous arthropods, but sources and pathways are likely to diversify with future globalization. Burgeoning urbanization, climate change and the urban heat island effect are likely to interact to favor invasive hematophagous arthropods and the diseases they can vector. To mitigate future invasions of hematophagous arthropods and novel disease outbreaks, stronger preventative monitoring and transboundary surveillance measures are urgently required. Proactive approaches, such as the use of monitoring and increased engagement in citizen science, would reduce epidemiological and ecological risks and could save millions of lives and billions of dollars spent on arthropod control and disease management. Last, our capacities to manage invasive hematophagous arthropods in a sustainable way for worldwide ecosystems can be improved by promoting interactions among experts of the health sector, stakeholders in environmental issues and policymakers (e.g. the One Health approach) while considering wider social perceptions.
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Affiliation(s)
- Ross N Cuthbert
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK.
| | | | - Olivier Chabrerie
- UMR CNRS 7058 "Ecologie et Dynamique des Systèmes Anthropisés" (EDYSAN), Université de Picardie Jules Verne, 1 rue des Louvels, 80037, Amiens Cedex 1, France
| | - Jonathan Lenoir
- UMR CNRS 7058 "Ecologie et Dynamique des Systèmes Anthropisés" (EDYSAN), Université de Picardie Jules Verne, 1 rue des Louvels, 80037, Amiens Cedex 1, France
| | - Franck Courchamp
- Ecologie Systématique Evolution, Université Paris-Saclay, CNRS, AgroParisTech, Gif sur Yvette, France
| | - Cecilia Claeys
- Centre de Recherche sur les Sociétés et les Environnement Méditerranéens (CRESEM), UR 7397 UPVD, Université de Perpignan, Perpignan, France
| | - Vincent Robert
- MIVEGEC, Université Montpellier, IRD, CNRS, Montpellier, France
| | - Frédéric Jourdain
- MIVEGEC, Université Montpellier, IRD, CNRS, Montpellier, France
- Santé Publique France, Saint-Maurice, France
| | - Romain Ulmer
- UMR CNRS 7058 "Ecologie et Dynamique des Systèmes Anthropisés" (EDYSAN), Université de Picardie Jules Verne, 1 rue des Louvels, 80037, Amiens Cedex 1, France
| | - Christophe Diagne
- CBGP, Université Montpellier, CIRAD, INRAE, Institut Agro, IRD, 755 Avenue du Campus Agropolis, 34988, Cedex, Montferrier-Sur-Lez, France
| | - Diego Ayala
- MIVEGEC, Université Montpellier, IRD, CNRS, Montpellier, France
- Medical Entomology Unit, Institut Pasteur de Madagascar, BP 1274, Antananarivo, Madagascar
| | - Frédéric Simard
- MIVEGEC, Université Montpellier, IRD, CNRS, Montpellier, France
| | - Serge Morand
- MIVEGEC, Université Montpellier, IRD, CNRS, Montpellier, France
- Faculty of Veterinary Technology, CNRS - CIRAD, Kasetsart University, Bangkok, Thailand
| | - David Renault
- Université de Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Évolution) - UMR 6553, Rennes, France
- Institut Universitaire de France, 1 Rue Descartes, Paris, France
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12
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Duval P, Antonelli P, Aschan-Leygonie C, Valiente Moro C. Impact of Human Activities on Disease-Spreading Mosquitoes in Urban Areas. J Urban Health 2023; 100:591-611. [PMID: 37277669 PMCID: PMC10322816 DOI: 10.1007/s11524-023-00732-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/25/2023] [Indexed: 06/07/2023]
Abstract
Urbanization is one of the leading global trends of the twenty-first century that has a significant impact on health. Among health challenges caused by urbanization, the relationship of urbanization between emergence and the spread of mosquito-borne infectious diseases (MBIDs) is a great public health concern. Urbanization processes encompass social, economic, and environmental changes that directly impact the biology of mosquito species. In particular, urbanized areas experience higher temperatures and pollution levels than outlying areas but also favor the development of infrastructures and objects that are favorable to mosquito development. All these modifications may influence mosquito life history traits and their ability to transmit diseases. This review aimed to summarize the impact of urbanization on mosquito spreading in urban areas and the risk associated with the emergence of MBIDs. Moreover, mosquitoes are considered as holobionts, as evidenced by numerous studies highlighting the role of mosquito-microbiota interactions in mosquito biology. Taking into account this new paradigm, this review also represents an initial synthesis on how human-driven transformations impact microbial communities in larval habitats and further interfere with mosquito behavior and life cycle in urban areas.
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Affiliation(s)
- Pénélope Duval
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, Bât. André Lwoff, 10 rue Raphaël Dubois, F-69622, Villeurbanne, France
| | - Pierre Antonelli
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, Bât. André Lwoff, 10 rue Raphaël Dubois, F-69622, Villeurbanne, France
| | - Christina Aschan-Leygonie
- University of Lyon, Université Lumière Lyon 2, UMR 5600 CNRS Environnement Ville Société, F-69007, Lyon, France
| | - Claire Valiente Moro
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, Bât. André Lwoff, 10 rue Raphaël Dubois, F-69622, Villeurbanne, France.
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13
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Canché-Pool EB, Panti-May JA, Ruiz-Piña HA, Torres-Castro M, Escobedo-Ortegón FJ, Tamay-Segovia P, Blum-Domínguez S, Torres-Castro JR, Reyes-Novelo E. Cutaneous Leishmaniasis Emergence in Southeastern Mexico: The Case of the State of Yucatan. Trop Med Infect Dis 2022; 7:tropicalmed7120444. [PMID: 36548699 PMCID: PMC9787846 DOI: 10.3390/tropicalmed7120444] [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: 11/19/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Environmental changes triggered by deforestation, urban expansion and climate change are present-day drivers of the emergence and reemergence of leishmaniasis. This review describes the current epidemiological scenario and the feasible influence of environmental changes on disease occurrence in the state of Yucatan, Mexico. Relevant literature was accessed through different databases, including PubMed, Scopus, Google, and Mexican official morbidity databases. Recent LCL autochthonous cases, potential vector sandflies and mammal hosts/reservoirs also have been reported in several localities of Yucatan without previous historical records of the disease. The impact of deforestation, urban expansion and projections on climate change have been documented. The current evidence of the relationships between the components of the transmission cycle, the disease occurrence, and the environmental changes on the leishmaniasis emergence in the state shows the need for strength and an update to the intervention and control strategies through a One Health perspective.
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Affiliation(s)
- Elsy B. Canché-Pool
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
| | - Jesús A. Panti-May
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
| | - Hugo A. Ruiz-Piña
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
| | - Marco Torres-Castro
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
| | - Francisco J. Escobedo-Ortegón
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
| | - Paulino Tamay-Segovia
- Centro de Investigaciones Biomédicas, Universidad Autónoma de Campeche, Av. Agustín Melgar s/n x 20 y Juan de la Barrera, Col. Buenavista, Campeche 24039, Mexico
| | - Selene Blum-Domínguez
- Centro de Investigaciones Biomédicas, Universidad Autónoma de Campeche, Av. Agustín Melgar s/n x 20 y Juan de la Barrera, Col. Buenavista, Campeche 24039, Mexico
| | - Jimmy R. Torres-Castro
- Servicios de Salud de Yucatán, Dirección de Prevención y Protección de la Salud, Calle 72 No. 463 x 53 y 55 Col. Centro, Mérida 97000, Mexico
| | - Enrique Reyes-Novelo
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Av. Itzaes No. 490 x 59, Col. Centro, Mérida 97200, Mexico
- Correspondence:
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14
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Molecular analysis of blood-associated pathogens in European wildcats (Felis silvestris silvestris) from Germany. Int J Parasitol Parasites Wildl 2022; 19:128-137. [PMID: 36119442 PMCID: PMC9477852 DOI: 10.1016/j.ijppaw.2022.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/05/2022]
Abstract
European wildcats (Felis silvestris silvestris) have not been investigated in large numbers for blood-associated pathogens in Germany, because wildcats, being a protected species, may not be hunted, and the collection of samples is therefore difficult. Thus, spleen tissue and whole blood from 96 wildcats from Germany found as roadkill or dead from other causes in the years 1998–2020 were examined for the prevalence of blood associated pathogens using molecular genetic tools. PCR was used to screen for haemotrophic Mycoplasma spp., Hepatozoon spp., Cytauxzoon spp., Bartonella spp., Filarioidea, Anaplasmataceae, and Rickettsiales, and positive samples were subsequently sequenced. Phylogenetic analyses were performed for Mycoplasma spp. and Hepatozoon spp. by calculating phylogenetic trees and DNA haplotype networks. The following pathogens were found: Candidatus Mycoplasma haematominutum (7/96), Mycoplasma ovis (1/96), Hepatozoon silvestris (34/96), Hepatozoon felis (6/96), Cytauxzoon europaeus (45/96), and Bartonella spp. (3/96). This study elucidates the prevalence of blood-associated pathogens in wildcats from Germany. European wildcats from Germany carry different blood-associated pathogens. Pathogens can also affect domestic cats. Transmision by vectors or other transmisison routes are possible.
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15
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Sultankulova KT, Shynybekova GO, Issabek AU, Mukhami NN, Melisbek AM, Chervyakova OV, Kozhabergenov NS, Barmak SM, Bopi AK, Omarova ZD, Alibekova DA, Argimbayeva TU, Namet AM, Zuban IA, Orynbayev MB. The Prevalence of Pathogens among Ticks Collected from Livestock in Kazakhstan. Pathogens 2022; 11:pathogens11101206. [PMID: 36297263 PMCID: PMC9611691 DOI: 10.3390/pathogens11101206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/26/2022] Open
Abstract
Ticks carry and transmit a wide variety of pathogens (bacteria, viruses and protozoa) that pose a threat to humans and animals worldwide. The purpose of this work was to study ticks collected in different regions of Kazakhstan for the carriage of various pathogens. The collected ticks were examined by PCR for the carriage of various pathogens. A total of 3341 tick samples parasitizing three animal species (cattle, sheep and horses) were collected at eight regions of Kazakhstan. Eight tick species were found infesting animals: Dermacentor marginatus (28.08%), Hyalomma asiaticum (21.28%), Hyalomma anatolicum (17.18%), Dermacentor reticulatus (2.01%), Ixodes ricinus (3.35%), Ixodes persulcatus (0.33%), Hyalomma scupense (12.87%) and Hyalomma marginatum (14.90%). Ticks collected from livestock animals were examined for the pathogen spectrum of transmissible infections to determine the degree of their infection. Four pathogen DNAs (lumpy skin disease virus (LSDV), Coxiella burnetti, Teileria annulata, and Babesia caballi) were detected by PCR in Dermacentor marginatus, Hyalomma asiaticum, Hyalomma scupense, Hyalomma anatolicum. The infection of ticks Dermacentor marginatus and Hyalomma asiaticum collected on cattle in the West Kazakhstan region with LSDV was 14.28% and 5.71%, respectively. Coxiella burnetti was found in the ticks Dermacentor marginatus (31.91%) in the Turkestan region and Hyalomma anatolicum (52.63%) in the Zhambyl region. Theileria annulata was found in ticks Hyalomma scupense (7.32%) and Dermacentor marginatus (6.10%) from cattle in the Turkestan region. Babesia caballi was isolated only from the species Hyalomma scupense (17.14%) in the Turkestan region. There were no PCR-positive tick samples collected from sheep. RNA/DNAs of tick-borne encephalitis virus (TBEV), African swine fever virus (ASFV), Hantavirus hemorrhagic fever with renal syndrome (HFRS), and chlamydia pathogens were not found in ticks. The new data give a better understanding of the epidemiology of tick-borne pathogens and the possibility of the emergence of tick-borne animal diseases in Kazakhstan.
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Affiliation(s)
- Kulyaisan T. Sultankulova
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
- Correspondence: (K.T.S.); (G.O.S.)
| | - Gaukhar O. Shynybekova
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
- Correspondence: (K.T.S.); (G.O.S.)
| | - Aisha U. Issabek
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Nazym N. Mukhami
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Aibarys M. Melisbek
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Olga V. Chervyakova
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Nurlan S. Kozhabergenov
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Sabyrkhan M. Barmak
- LLP “Kazakh Research Institute of Processing and Food Industry”, Almaty 050060, Kazakhstan
| | - Arailym K. Bopi
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Zamira D. Omarova
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Dana A. Alibekova
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Takhmina U. Argimbayeva
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
| | - Aidar M. Namet
- MVA Group Scientific-Research Production Center Ltd., Almaty 050046, Kazakhstan
| | - Ivan A. Zuban
- Department “Biology”, Faculty of Mathematics and Natural Sciences, M. Kozybayev North Kazakhstan University, Petropavlovsk 150000, Kazakhstan
| | - Mukhit B. Orynbayev
- Research Institute for Biological Safety Problems of the Ministry of Health of the Republic of Kazakhstan, Gvardeiskiy 080409, Kazakhstan
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Moreira Magela S, Flávia do Nascimento A, Macena Pereira de Souza B. Capybara Ticks and the Urban Context of Spotted Fever in Brazil: An Overview. Infect Dis (Lond) 2022. [DOI: 10.5772/intechopen.106639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Spotted fever is caused by Rickettsia rickettsii and is transmitted through tick’s saliva. Humans, ticks, and capybaras (Hydrochoerus hydrochaeris) are often coexisting in environments that favor the spread of Brazilian spotted fever (BSF). Although capybaras do not transmit R. rickettsii, they can amplify these bacteria among tick vector populations, playing a significant role in the one health approach and epidemiology of the disease. Urban populations of capybaras have increased, especially in Southeast Brazil, as well as the number of cases and lethality of BSF have increased in the country since the 1980s. This expansion is mainly determined by the availability of food and the absence of predators. Thus, urban areas, including parks and university campuses, provide an abundance of food and protection against predators, ensuring the multiplication of the species and increasing the risk of transmission to humans due to the proximity of man with animals in the urban environment. Therefore, this chapter aims to address aspects of spotted fever, considering the many dimensions of the species involved, contributing to public strategies and policies.
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17
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Perveen N, Khan G. Crimean–Congo hemorrhagic fever in the Arab world: A systematic review. Front Vet Sci 2022; 9:938601. [PMID: 36176697 PMCID: PMC9513365 DOI: 10.3389/fvets.2022.938601] [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: 05/07/2022] [Accepted: 08/25/2022] [Indexed: 11/23/2022] Open
Abstract
Crimean-Congo hemorrhagic fever (CCHF) is an important tick-borne viral infection with a fatality rate of up to 50% during outbreaks. Crimean-Congo hemorrhagic fever virus (CCHFV) is sustained in the ecosystem in benign form through vertical and horizontal transmission cycles involving tick vectors, wildlife, and livestock. Hyalomma ticks are considered the major source of human infection. CCHF occurs most often among butchers, slaughterhouse workers, and farmworkers through infected tick bites or/and contact with blood and tissues of infected livestock. The nosocomial transmission can occur in auxiliary nurses and physicians through contact with the infected patients. The widespread distribution of CCHFV most probably occurred by ticks on migratory birds, or through international travel and trade of livestock and wildlife. During co-infections of ticks and vertebrates, reassortment among genome segments could play a significant role in generating diversity, and hence, a potential risk for the emergence of novel variants. In this systematic review, we aimed to determine the epidemiology, transmission, distribution, mortality, and clinical features of CCHF in 22 Arab countries, comprising the Arab world. Based on the analysis of 57 studies published from 1978 to 2021, we found 20 tick species that could be associated with CCHFV transmission. During the 43-year period, 321 cases of CCHF were reported from 9/22 Arab countries, Iraq, Kuwait, UAE, Saudi Arabia, Oman, Sudan, Egypt, Tunisia, and Mauritania. The mean case fatality rate was 29% during various outbreaks. Individuals working in abattoirs/slaughter houses, livestock farms, and healthcare were most at risk. Contact with blood or body secretions from infected animals and patients was the most common mode of transmission. A number of different animals, including cattle, goats, sheep, and camels were reported to be seropositive for CCHFV. The highest seroprevalence was observed in camels (29%), followed by cattle (21%), goats (15%), and sheep (14%). We discuss these results in the context of policy-making and potential preventative measures that can be implemented to reduce the burden of CCHF in the Arab world.
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Affiliation(s)
- Nighat Perveen
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Gulfaraz Khan
- Department of Microbiology & Immunology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
- *Correspondence: Gulfaraz Khan
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Ganassi S, De Cristofaro A, Di Criscio D, Petrarca S, Leopardi C, Guarnieri A, Pietrangelo L, Venditti N, Di Marco R, Petronio Petronio G. The new invasive mosquito species Aedes koreicus as vector-borne diseases in the European area, a focus on Italian region: What we know from the scientific literature. Front Microbiol 2022; 13:931994. [PMID: 35958131 PMCID: PMC9358684 DOI: 10.3389/fmicb.2022.931994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/29/2022] [Indexed: 11/13/2022] Open
Abstract
The increased mobility of goods, people, and animals worldwide has caused the spread of several arthropod vectors, leading to an increased risk of animal and human infections. Aedes koreicus is a common species in South Korea, China, Japan, and Russia. Due to its cold-resistant dormant eggs, the adults last from the late summer until the autumn seasons. For these reasons, it seems to be better adapted to colder temperatures, favoring its colonization of hilly and pre-alpine areas. Its first appearance in Europe was in 2008 in Belgium, where it is currently established. The species was subsequently detected in Italy in 2011, European Russia, Germany, the Swiss–Italian border region, Hungary, Slovenia, Crimea, Austria, the Republic of Kazakhstan, and the Netherlands. The role of A. koreicus in the transmission of vector-borne pathogens remains unclear. The available scientific evidence is very old, often not available in English or not indexed in international databases, and therefore difficult to find. According to the literature reviewed, A. koreicus can be considered a new invasive mosquito species in Europe, establishing populations on the European continent. In addition, experimental evidence demonstrated its vector competence for both Dirofilaria immitis and Chikungunya and is relatively low for ZIKA but not for Western Nile Virus. On the other hand, even if the field evidence does not confirm the experimental findings, it is currently not possible to exclude with absolute certainty the potential involvement of this species in the spread, emergence, or re-emergence of these vector-borne disease agents.
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Affiliation(s)
- Sonia Ganassi
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Antonio De Cristofaro
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Dalila Di Criscio
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Sonia Petrarca
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Chiara Leopardi
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Antonio Guarnieri
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Laura Pietrangelo
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Noemi Venditti
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Roberto Di Marco
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
- *Correspondence: Roberto Di Marco
| | - Giulio Petronio Petronio
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
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Hartke J, Reuss F, Kramer IM, Magdeburg A, Deblauwe I, Tuladhar R, Gautam I, Dhimal M, Müller R. A barcoding pipeline for mosquito surveillance in Nepal, a biodiverse dengue-endemic country. Parasit Vectors 2022; 15:145. [PMID: 35462529 PMCID: PMC9035287 DOI: 10.1186/s13071-022-05255-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/25/2022] [Indexed: 12/05/2022] Open
Abstract
Background Vector-borne diseases are on the rise on a global scale, which is anticipated to further accelerate because of anthropogenic climate change. Resource-limited regions are especially hard hit by this increment with the currently implemented surveillance programs being inadequate for the observed expansion of potential vector species. Cost-effective methods that can be easily implemented in resource-limited settings, e.g. under field conditions, are thus urgently needed to function as an early warning system for vector-borne disease epidemics. Our aim was to enhance entomological capacity in Nepal, a country with endemicity of numerous vector-borne diseases and with frequent outbreaks of dengue fever. Methods We used a field barcoding pipeline based on DNA nanopore sequencing (Oxford Nanopore Technologies) and verified its use for different mosquito life stages and storage methods. We furthermore hosted an online workshop to facilitate knowledge transfer to Nepalese scientific experts from different disciplines. Results The use of the barcoding pipeline could be verified for adult mosquitos and eggs, as well as for homogenized samples, dried specimens, samples that were stored in ethanol and frozen tissue. The transfer of knowledge was successful, as reflected by feedback from the participants and their wish to implement the method. Conclusions Cost effective strategies are urgently needed to assess the likelihood of disease outbreaks. We were able to show that field sequencing provides a solution that is cost-effective, undemanding in its implementation and easy to learn. The knowledge transfer to Nepalese scientific experts from different disciplines provides an opportunity for sustainable implementation of low-cost portable sequencing solutions in Nepal. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05255-1.
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Affiliation(s)
- Juliane Hartke
- Unit Entomology, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium. .,Institute of Organismic and Molecular Evolution, Johannes Gutenberg University Mainz, 55128, Mainz, Germany.
| | - Friederike Reuss
- Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, 60325, Frankfurt am Main, Germany.,Institute of Occupational, Social and Environmental Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Isabelle Marie Kramer
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Axel Magdeburg
- Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, 60325, Frankfurt am Main, Germany.,Institute of Occupational, Social and Environmental Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Isra Deblauwe
- Unit Entomology, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Reshma Tuladhar
- Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal
| | - Ishan Gautam
- Natural History Museum, Tribhuvan University, Kathmandu, Nepal
| | - Meghnath Dhimal
- Nepal Health Research Council, Ramshah Path, Kathmandu, 44600, Nepal
| | - Ruth Müller
- Unit Entomology, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium.,Institute of Occupational, Social and Environmental Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
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20
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Hussain S, Perveen N, Hussain A, Song B, Aziz MU, Zeb J, Li J, George D, Cabezas-Cruz A, Sparagano O. The Symbiotic Continuum Within Ticks: Opportunities for Disease Control. Front Microbiol 2022; 13:854803. [PMID: 35369485 PMCID: PMC8969565 DOI: 10.3389/fmicb.2022.854803] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/15/2022] [Indexed: 12/26/2022] Open
Abstract
Among blood-sucking arthropods, ticks are recognized as being of prime global importance because of their role as vectors of pathogens affecting human and animal health. Ticks carry a variety of pathogenic, commensal, and symbiotic microorganisms. For the latter, studies are available concerning the detection of endosymbionts, but their role in the physiology and ecology of ticks remains largely unexplored. This review paper focuses on tick endosymbionts of the genera Coxiella, Rickettsia, Francisella, Midichloria, and Wolbachia, and their impact on ticks and tick-pathogen interactions that drive disease risk. Tick endosymbionts can affect tick physiology by influencing nutritional adaptation, fitness, and immunity. Further, symbionts may influence disease ecology, as they interact with tick-borne pathogens and can facilitate or compete with pathogen development within the vector tissues. Rickettsial symbionts are frequently found in ticks of the genera of Ixodes, Amblyomma, and Dermacentor with relatively lower occurrence in Rhipicephalus, Haemaphysalis, and Hyalomma ticks, while Coxiella-like endosymbionts (CLEs) were reported infecting almost all tick species tested. Francisella-like endosymbionts (FLEs) have been identified in tick genera such as Dermacentor, Amblyomma, Ornithodoros, Ixodes, and Hyalomma, whereas Wolbachia sp. has been detected in Ixodes, Amblyomma, Hyalomma, and Rhipicephalus tick genera. Notably, CLEs and FLEs are obligate endosymbionts essential for tick survival and development through the life cycle. American dog ticks showed greater motility when infected with Rickettsia, indirectly influencing infection risk, providing evidence of a relationship between tick endosymbionts and tick-vectored pathogens. The widespread occurrence of endosymbionts across the tick phylogeny and evidence of their functional roles in ticks and interference with tick-borne pathogens suggests a significant contribution to tick evolution and/or vector competence. We currently understand relatively little on how these endosymbionts influence tick parasitism, vector capacity, pathogen transmission and colonization, and ultimately on how they influence tick-borne disease dynamics. Filling this knowledge gap represents a major challenge for future research.
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Affiliation(s)
- Sabir Hussain
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Nighat Perveen
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Abrar Hussain
- Department of Epidemiology and Public Health, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Baolin Song
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Muhammad Umair Aziz
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - 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 SAR, China
| | - Jun Li
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - David George
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Alejandro Cabezas-Cruz
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | - Olivier Sparagano
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
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Hard Ticks (Ixodidae) from Wildlife in Liguria, Northwest Italy: Tick Species Diversity and Tick-Host Associations. INSECTS 2022; 13:insects13020199. [PMID: 35206772 PMCID: PMC8880679 DOI: 10.3390/insects13020199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/28/2022] [Accepted: 02/10/2022] [Indexed: 02/05/2023]
Abstract
Hard ticks’ geographical distribution and abundance are influenced by wildlife population. This work presents the results of the identification of ticks retrieved from wild animals in the framework of a Regional Plan of Monitoring and Surveillance of Wildlife health. The frequency of distribution of ticks in different hosts and their geographical patterns were also investigated. Ticks were collected from game animals (Sus scrofa, Capreolus capreolus, Dama dama, and Rupicapra rupicapra) during two hunting seasons (2018–2019 and 2019–2020) in the four provinces of the Liguria region in northwest Italy. In the same period, ticks were also collected from carcasses of Vulpes vulpes, Canis lupus, Meles meles, and Asio otus received for necropsy. Tick species were identified according to taxonomic keys. A total of 819 ticks, removed from 259 animals, were found and identified. Overall, Ixodes ricinus was the dominant species (62.6%), followed by Dermacentor marginatus (24.5%), Rhipicephalus sanguineus s.l. (12.5%), Haemaphysalis punctata (0.2%), and Ixodes hexagonus (0.1%). I. ricinus was also the prevalent species in roe deer and in fallow deer and the only species collected from the three wolf carcasses examined. In contrast, D. marginatus was the dominant species in S. scrofa. This last tick species was also more frequent in one province (Imperia), whereas Ixodes spp. were more common in another one (Savona). Wild animals proved to be useful for characterizing and monitoring tick population.
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22
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Effects of Sterile Males and Fertility of Infected Mosquitoes on Mosquito-Borne Disease Dynamics. Bull Math Biol 2022; 84:31. [DOI: 10.1007/s11538-022-00991-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/28/2021] [Indexed: 11/24/2022]
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23
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Neupane N, Goldbloom-Helzner A, Arab A. Spatio-temporal modeling for confirmed cases of lyme disease in Virginia. Ticks Tick Borne Dis 2021; 12:101822. [PMID: 34555712 DOI: 10.1016/j.ttbdis.2021.101822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/18/2021] [Accepted: 08/09/2021] [Indexed: 11/24/2022]
Abstract
Epidemiological data often include characteristics such as spatial and/or temporal dependencies and excess zero counts, which pose modeling challenges. Excess zeros in such data may arise from imperfect detection and/or relative rareness of the disease in a given location. Here, we studied the spatio-temporal variation in annual Lyme disease cases in Virginia from 2001-2016 and modeled the disease with a spatio-temporal hierarchical Bayesian model. Using observed ecological and environmental covariates, we constructed a predictive model for the disease spread over space and time, including spatial and temporal random effects. We considered several different models and found that the negative binomial hurdle model performs the best for such epidemiological data. Among the various ecological predictors, the North-South (V component) of winds and relative humidity significantly contributed to predicting the Lyme cases. Our model results provide important insights on the spread of the disease in Virginia and the proposed modeling framework offers epidemiologists and health policymakers a useful tool for improving disease preparedness and control plans for the future.
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Affiliation(s)
- Naresh Neupane
- Georgetown University, Department of Biology, Washington, DC 20057, USA.
| | | | - Ali Arab
- Georgetown University, Department of Mathematics and Statistics, Washington, DC 20057, USA
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24
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Recurrence and Driving Factors of Visceral Leishmaniasis in Central China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189535. [PMID: 34574459 PMCID: PMC8468393 DOI: 10.3390/ijerph18189535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 01/17/2023]
Abstract
Visceral leishmaniasis (VL) is an important vector-borne zoonosis caused by Leishmania spp. that has been spreading in China. It has been posing a significant risk to public health in central China due to its recurrence in recent decades. Yet, the spatiotemporal patterns and the driving factors of VL in central China remain unclear at present. The purpose of this study was to analyse spatiotemporal distribution, explore driving factors, and provide novel insight into prevention and control countermeasures of the VL spreading in central China. Based on data of human VL cases from 2006 to 2019 obtained from the Chinese Centres for Disease Control and Prevention (CDC), we depicted the map showing the spatiotemporal distribution of VL in central China. We further explored the driving factors contributing to the spread of VL through the general additive model (GAM) by combining maps of environmental, meteorological, and socioeconomic correlates. Most VL cases were reported in Shaanxi and Shanxi provinces, the number of which has been increasing every year in the last 14 years, from 3 new cases in 2006 to 101 new cases in 2019. The results of GAM revealed that environmental (i.e., changes in grasslands/forests), meteorological (i.e., temperature and relative humidity), and socioeconomic (i.e., population density) factors are significantly associated with the prevalence of VL in central China. Our results provide a better understanding regarding the current situation and the driving factors of VL in central China, assisting in developing the disease prevention and control strategies implemented by public health authorities.
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Abdullah HHAM, Amanzougaghene N, Dahmana H, Louni M, Raoult D, Mediannikov O. Multiple vector-borne pathogens of domestic animals in Egypt. PLoS Negl Trop Dis 2021; 15:e0009767. [PMID: 34587171 PMCID: PMC8480906 DOI: 10.1371/journal.pntd.0009767] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/26/2021] [Indexed: 11/19/2022] Open
Abstract
Vector Borne Diseases (VBDs) are considered emerging and re-emerging diseases that represent a global burden. The aim of this study was to explore and characterize vector-borne pathogens in different domestic animal hosts in Egypt. A total of 557 blood samples were collected from different animals using a convenience sampling strategy (203 dogs, 149 camels, 88 cattle, 26 buffaloes, 58 sheep and 33 goats). All samples were tested for multiple pathogens using quantitative PCR and standard PCR coupled with sequencing. We identified Theileria annulata and Babesia bigemina in cattle (15.9 and 1.1%, respectively), T. ovis in sheep and buffaloes (8.6 and 7.7%, respectively) and Ba. canis in dogs (0.5%) as well as Anaplasma marginale in cattle, sheep and camels (20.4, 3.4 and 0.7%, respectively) and Coxiella burnetii in sheep and goats (1.7 and 3%; respectively). New genotypes of An. centrale, An. ovis, An. platys-like and Borrelia theileri were found in cattle (1.1,3.4, 3.4 and 3.4%, respectively), An. platys-like in buffaloes (7.7%), An. marginale, An. ovis, An. platys-like and Bo. theileri in sheep (3.4, 1.7, 1.7 and 3.4%, respectively), An. platys, An. platys-like and Setaria digitata in camels (0.7, 5.4 and 0.7%, respectively) and Rickettsia africae-like, An. platys, Dirofilaria repens and Acanthocheilonema reconditum in dogs (1.5, 3.4, 1 and 0.5%, respectively). Co-infections were found in cattle, sheep and dogs (5.7, 1.7, 0.5%, respectively). For the first time, we have demonstrated the presence of several vector-borne zoonoses in the blood of domestic animals in Egypt. Dogs and ruminants seem to play a significant role in the epidemiological cycle of VBDs.
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Affiliation(s)
- Hend H. A. M. Abdullah
- Department of Parasitology and Animal Diseases, Veterinary Research Division, National Research Centre, Dokki, Giza, Egypt
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Nadia Amanzougaghene
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Handi Dahmana
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Meriem Louni
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Didier Raoult
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Oleg Mediannikov
- Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
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Reegan AD, Kumar PS, Asharaja AC, Devi C, Jameela S, Balakrishna K, Ignacimuthu S. Larvicidal and ovicidal activities of phenyl acetic acid isolated from Streptomyces collinus against Culex quinquefasciatus Say and Aedes aegypti L. (Diptera: Culicidae). Exp Parasitol 2021; 226-227:108120. [PMID: 34089701 DOI: 10.1016/j.exppara.2021.108120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/26/2021] [Accepted: 05/30/2021] [Indexed: 11/19/2022]
Abstract
The bio-efficacy of crude ethyl acetate extract, fractions and a compound phenyl acetic acid from the ethyl acetate extract of Streptomyces collinus was evaluated on Culex quinquefasciatus Say and Aedes aegypti L. mosquitoes (Diptera: Culicidae). The larvae were exposed to concentrations of 2.5, 5.0, 7.5 and 10.0 ppm for fractions and 0.5, 1.0, 1.5 and 2.0 ppm for compound. After 24 h, the larval mortality was assessed and the LC₅₀ and LC90 values were calculated. Similarly, per cent ovicidal activity was calculated for eggs after 120 h post treatment for phenyl acetic acid. Among the eleven fractions screened, fraction 7 from the ethyl acetate extract of Streptomyces collinus exhibited good larvicidal activity against both mosquito species. The LC50 and LC90 values of fraction 7 were 4.42, 6.23 ppm against Cx. quinquefasciatus larvae and 5.13, 14.51 ppm against Ae. aegypti larvae, respectively. Further, the isolated compound, phenyl acetic acid from fraction 7 recorded 100% larvicidal activity at 2 ppm concentration with LC50 and LC90 values of 2.07, 4.87 ppm on Cx. quinquefasciatus larvae and 3.81, 9.87 ppm on Ae. aegypti larvae, respectively. Phenyl acetic acid presented 50.3% and 42.0% ovicidal activity against Cx. quinquefasciatus and Ae. aegypti eggs at 2 ppm concentration after 120 h post treatment. The compound, phenyl acetic acid could be used in mosquito control programme.
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Affiliation(s)
- Appadurai Daniel Reegan
- National Centre for Disease Control, NTI Campus, Bellary Road, Bangalore, 560 003, Karnataka, India.
| | - Pachaiyappan Saravana Kumar
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510 301, Guangdong, China.
| | - Antony Cruz Asharaja
- P.G. and Research Department of Zoology, Pasumpon Muthuramalinga Thevar College, Melaneelithanallur, Tenkasi, 627 953, Tamil Nadu, India
| | - Chitra Devi
- Department of Zoology, Sadakathullah Appa College (Autonomous), Rahmath Nagar, Tirunelveli, 627 011, Tamil Nadu, India
| | - Sithi Jameela
- Department of Zoology, Sadakathullah Appa College (Autonomous), Rahmath Nagar, Tirunelveli, 627 011, Tamil Nadu, India
| | - Kedike Balakrishna
- Entomology Research Institute, Loyola College, Chennai, 600 034, Tamil Nadu, India
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Rivadeneira-Barreiro PE, Montes de Oca-Jiménez R, Vázquez-Chagoyán JC, Martínez-Subiela S, Morán-Loor A, Ochoa-García L, Zambrano-Rodríguez PC, Garg NJ, Varela-Guerrero JA. Trypanosoma cruzi co-infections with other vector borne diseases are frequent in dogs from the pacific coast of Ecuador. Microb Pathog 2021; 155:104884. [PMID: 33864876 DOI: 10.1016/j.micpath.2021.104884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
Dogs are a reservoir for Chagas disease, caused by Trypanosoma cruzi (T. cruzi), and other companion vector-borne diseases, including ehrlichiosis (Ehrlichia canis and Ehrlichia ewingii), anaplasmosis (Anaplasma phagocytophilum and Anaplasma platys), dirofilariasis (Dirofilaria immitis) and Lyme disease (Borrelia burgdorferi). This study has two key objectives: 1) to determine seroreactivity against T. cruzi in dogs from the town of Colón, in Portoviejo city, in the central coast of Ecuador; and 2) to establish the coinfection frequency of other companion vector-borne diseases in dogs positive for T. cruzi. Antibodies against T. cruzi were detected using two enzyme-linked immunosorbent assays. Diagnostic consensus between ELISA tests was established using the Cohen's Kappa coefficient. Other haemoparasitic diseases were detected using the IDEXX SNAP® 4Dx® kit in dogs previously diagnosed as T. cruzi-seropositive. From 84 dogs sampled, 57.14% (48/84) tested positive for T. cruzi. Co-infection analysis of 25 dogs positive for T. cruzi revealed antibodies also against Ehrlichia spp. (48%), Anaplasma spp. (28%), and Dirofilaria immitis (12%). These results provide a novel perspective regarding the status of these pathogens which co-infect dogs in Colón. Since all these pathogens are zoonotic, our findings should warn regional health authorities to implement sanitary programs, to better prevent and control vectors associated to these pathogens. On the other hand, human and veterinarian doctors, should consider that patients with a cardiac infection condition could be suffering co-infections with two or more vector transmitted pathogens.
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Affiliation(s)
- Pilar Eliana Rivadeneira-Barreiro
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, Toluca, Estado de México, C.P. 50200, México; Departamento de Veterinaria, Facultad de Ciencias Veterinarias, Universidad Técnica de Manabí, Portoviejo, Manabí, Ecuador
| | - Roberto Montes de Oca-Jiménez
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, Toluca, Estado de México, C.P. 50200, México.
| | - Juan Carlos Vázquez-Chagoyán
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, Toluca, Estado de México, C.P. 50200, México.
| | - Silvia Martínez-Subiela
- Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Campus de Espinardo s/n, 30100, Espinardo, Murcia, Spain
| | | | - Laucel Ochoa-García
- Laboratorio Estatal de Salud Pública del Instituto de Salud del Estado de México, Independencia Oriente #1310 Colonia: Reforma y FFCC, CP. 50070, Toluca, Estado de México, México
| | - Pablo C Zambrano-Rodríguez
- Departamento de Veterinaria, Facultad de Ciencias Veterinarias, Universidad Técnica de Manabí, Portoviejo, Manabí, Ecuador
| | - Nisha Jain Garg
- Department of Microbiology & Immunology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-1070, United States
| | - Jorge Antonio Varela-Guerrero
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, Toluca, Estado de México, C.P. 50200, México
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Detecting seasonal transient correlations between populations of the West Nile Virus vector Culex sp. and temperatures with wavelet coherence analysis. ECOL INFORM 2021. [DOI: 10.1016/j.ecoinf.2021.101216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Perveen N, Muzaffar SB, Al-Deeb MA. Ticks and Tick-Borne Diseases of Livestock in the Middle East and North Africa: A Review. INSECTS 2021; 12:83. [PMID: 33477991 PMCID: PMC7835866 DOI: 10.3390/insects12010083] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/13/2021] [Accepted: 01/13/2021] [Indexed: 01/18/2023]
Abstract
Ticks are important vectors of an array of viral, bacterial and protozoan pathogens resulting in a wide range of animal and human diseases. There is limited information in the literature about tick species in the Middle East and North Africa (MENA) countries, even though they have suitable climate and vegetation for ticks and their hosts. We reviewed the occurrence of tick species and the pathogens they transmit from the MENA on published papers from 1901-2020. We found taxonomic records of 55 tick species infesting livestock representing the following eight genera: Ornithodoros, Otobius, Amblyomma, Dermacentor, Haemaphysalis, Hyalomma, Ixodes, and Rhipicephalus. In addition, 15 pathogens were recorded causing diseases of significance, with Crimean-Congo hemorrhagic fever, theileriosis, babesiosis and anaplasmosis being widely distributed diseases in the region. In recent decades, there has been increasing trends in disease occurrence and movement associated with global movement of humans and global trade of animals. We suggest that disease control and prevention could be achieved effectively through good integration between public health, veterinary medicine and animal management, and ecological approaches. We recommend further research in the areas of tick ecology and tick born-disease transmission. Furthermore, we suggest evaluation and improvement of disease control policies in the region.
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Affiliation(s)
| | | | - Mohammad Ali Al-Deeb
- Department of Biology, United Arab Emirates University, Al-Ain 15551, UAE; (N.P.); (S.B.M.)
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Parikh N, Daughton AR, Rosenberger WE, Aberle DJ, Chitanvis ME, Altherr FM, Velappan N, Fairchild G, Deshpande A. Improving Detection of Disease Re-emergence Using a Web-Based Tool (RED Alert): Design and Case Analysis Study. JMIR Public Health Surveill 2021; 7:e24132. [PMID: 33316766 PMCID: PMC7819778 DOI: 10.2196/24132] [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: 09/04/2020] [Revised: 10/26/2020] [Accepted: 12/14/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Currently, the identification of infectious disease re-emergence is performed without describing specific quantitative criteria that can be used to identify re-emergence events consistently. This practice may lead to ineffective mitigation. In addition, identification of factors contributing to local disease re-emergence and assessment of global disease re-emergence require access to data about disease incidence and a large number of factors at the local level for the entire world. This paper presents Re-emerging Disease Alert (RED Alert), a web-based tool designed to help public health officials detect and understand infectious disease re-emergence. OBJECTIVE Our objective is to bring together a variety of disease-related data and analytics needed to help public health analysts answer the following 3 primary questions for detecting and understanding disease re-emergence: Is there a potential disease re-emergence at the local (country) level? What are the potential contributing factors for this re-emergence? Is there a potential for global re-emergence? METHODS We collected and cleaned disease-related data (eg, case counts, vaccination rates, and indicators related to disease transmission) from several data sources including the World Health Organization (WHO), Pan American Health Organization (PAHO), World Bank, and Gideon. We combined these data with machine learning and visual analytics into a tool called RED Alert to detect re-emergence for the following 4 diseases: measles, cholera, dengue, and yellow fever. We evaluated the performance of the machine learning models for re-emergence detection and reviewed the output of the tool through a number of case studies. RESULTS Our supervised learning models were able to identify 82%-90% of the local re-emergence events, although with 18%-31% (except 46% for dengue) false positives. This is consistent with our goal of identifying all possible re-emergences while allowing some false positives. The review of the web-based tool through case studies showed that local re-emergence detection was possible and that the tool provided actionable information about potential factors contributing to the local disease re-emergence and trends in global disease re-emergence. CONCLUSIONS To the best of our knowledge, this is the first tool that focuses specifically on disease re-emergence and addresses the important challenges mentioned above.
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Affiliation(s)
- Nidhi Parikh
- Information Systems and Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Ashlynn R Daughton
- Information Systems and Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - William Earl Rosenberger
- Information Systems and Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Derek Jacob Aberle
- Neutron Science and Technology Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | | | | | - Nileena Velappan
- Biosecurity and Public Health Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Geoffrey Fairchild
- Information Systems and Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Alina Deshpande
- Biosecurity and Public Health Group, Los Alamos National Laboratory, Los Alamos, NM, United States
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Parhizgari N, Piazak N, Mostafavi E. Vector-borne diseases in Iran: epidemiology and key challenges. Future Microbiol 2021; 16:51-69. [PMID: 33438476 DOI: 10.2217/fmb-2019-0306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Vector-borne diseases have become a global health concern in recent decades as a result of global warming, globalization, growth in international trade and travel, use of insecticide and drug resistance. This review study addressed the key vector-borne diseases and their current status in Iran to emphasize the requirements for further research on vector-borne diseases. The dispersion patterns of these diseases differ in various regions. Some of them such as Crimean-Congo hemorrhagic fever, and Q fever are distributed all across Iran, whereas some others such as plague, leishmaniasis, tularemia, and malaria are restricted to specific areas. The high prevalence of vectors throughout the country necessitates enhancing the monitoring and surveillance of emerging and reemerging vector-borne diseases and their potential vectors.
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Affiliation(s)
- Najmeh Parhizgari
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Epidemiology and Biostatistics, Research Centre for Emerging & Reemerging infectious diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Norair Piazak
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Ehsan Mostafavi
- Department of Epidemiology and Biostatistics, Research Centre for Emerging & Reemerging infectious diseases, Pasteur Institute of Iran, Tehran, Iran.,National Reference Laboratory for Plague, Tularemia & Q fever, Research Centre for Emerging & Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Kabudar Ahang, Hamadan, Iran
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Levytska VA, Mushinsky AB, Zubrikova D, Blanarova L, Długosz E, Vichova B, Slivinska KA, Gajewski Z, Gizinski S, Liu S, Zhou L, Rogovskyy AS. Detection of pathogens in ixodid ticks collected from animals and vegetation in five regions of Ukraine. Ticks Tick Borne Dis 2020; 12:101586. [PMID: 33059172 DOI: 10.1016/j.ttbdis.2020.101586] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022]
Abstract
The distribution and prevalence of zoonotic pathogens infecting ixodid ticks in Western Europe have been extensively examined. However, data on ticks and tick-borne pathogens in Eastern Europe, particularly Ukraine are scarce. The objective of the current study was, therefore, to investigate the prevalence of Anaplasma phagocytophilum, Anaplasmataceae, Rickettsia spp., Babesia spp., Bartonella spp., and Borrelia burgdorferi sensu lato in engorged and questing ixodid ticks collected from five administrative regions (oblasts) of Ukraine, namely Chernivtsi, Khmelnytskyi, Kyiv, Ternopil, and Vinnytsia. The ticks were collected from both wild and domestic animals and from vegetation. Of 524 ixodid ticks collected, 3, 99, and 422 ticks were identified as Ixodes hexagonus, Ixodes ricinus, and Dermacentor reticulatus, respectively. DNA samples individually extracted from 168 questing and 354 engorged adult ticks were subjected to pathogen-specific PCR analyses. The mean prevalence in I. ricinus and D. reticulatus were, respectively: 10 % (10/97) and 3 % (12/422) for A. phagocytophilum; 69 % (67/97) and 52 % (220/422) for members of the Anaplasmataceae family; 25 % (24/97) and 28 % (117/422) for Rickettsia spp.; 3 % (3/97) and 1 % (6/422) for Babesia spp.; and 9 % (9/97) and 5 % (20/422) for Bartonella spp. Overall, between the five cities, there was no significant difference in the prevalence of any of the pathogens for the respective ticks (p > 0.05). The prevalence of B. burgdorferi s. l. in the questing and engorged I. ricinus varied from 0 to 27 % and 14-44%, respectively, with no statistical significance identified between the five cities (p > 0.05). In addition to reporting the updated data for Kyiv and Ternopil, this study is the first to provide the prevalences of the tick-borne pathogens for Chernivtsi, Khmelnytskyi, and Vinnytsia. This investigation is also the first to detect Neoehrlichia mikurensis in ixodid ticks from Ukraine. These new data will be useful for medical and veterinary practitioners as well as public health officials when diagnosing infections and when implementing measures to combat tick-borne diseases in Ukraine.
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Affiliation(s)
- Viktoriya A Levytska
- Department of Infection and Invasive Diseases, Faculty of Veterinary Medicine and Technology in Animal Husbandry, State Agrarian and Engineering University in Podilya, Kamyanets-Podilskyi, 32300, Ukraine.
| | - Andriy B Mushinsky
- Department of Infection and Invasive Diseases, Faculty of Veterinary Medicine and Technology in Animal Husbandry, State Agrarian and Engineering University in Podilya, Kamyanets-Podilskyi, 32300, Ukraine
| | - Dana Zubrikova
- Department of Vector-Borne Diseases, Institute of Parasitology, Slovak Academy of Sciences, 04001, Košice, Slovakia
| | - Lucia Blanarova
- Department of Vector-Borne Diseases, Institute of Parasitology, Slovak Academy of Sciences, 04001, Košice, Slovakia
| | - Ewa Długosz
- Department of Preclinical Sciences, Warsaw University of Life Sciences (SGGW), 02-787, Warsaw, Poland
| | - Bronislava Vichova
- Department of Vector-Borne Diseases, Institute of Parasitology, Slovak Academy of Sciences, 04001, Košice, Slovakia
| | - Kateryna A Slivinska
- I. Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine, Kyiv, 01030, Ukraine
| | - Zdzislaw Gajewski
- Department of Large Animal Diseases with Clinic, Warsaw University of Life Sciences (SGGW), 02-787, Warsaw, Poland
| | - Slawomir Gizinski
- Department of Large Animal Diseases with Clinic, Warsaw University of Life Sciences (SGGW), 02-787, Warsaw, Poland
| | - Shuling Liu
- Department of Statistics, Texas A&M University, College Station, TX 77845, USA
| | - Lan Zhou
- Department of Statistics, Texas A&M University, College Station, TX 77845, USA
| | - Artem S Rogovskyy
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77845, USA
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Gangoso L, Aragonés D, Martínez-de la Puente J, Lucientes J, Delacour-Estrella S, Estrada Peña R, Montalvo T, Bueno-Marí R, Bravo-Barriga D, Frontera E, Marqués E, Ruiz-Arrondo I, Muñoz A, Oteo JA, Miranda MA, Barceló C, Arias Vázquez MS, Silva-Torres MI, Ferraguti M, Magallanes S, Muriel J, Marzal A, Aranda C, Ruiz S, González MA, Morchón R, Gómez-Barroso D, Figuerola J. Determinants of the current and future distribution of the West Nile virus mosquito vector Culex pipiens in Spain. ENVIRONMENTAL RESEARCH 2020; 188:109837. [PMID: 32798954 DOI: 10.1016/j.envres.2020.109837] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Changes in environmental conditions, whether related or not to human activities, are continuously modifying the geographic distribution of vectors, which in turn affects the dynamics and distribution of vector-borne infectious diseases. Determining the main ecological drivers of vector distribution and how predicted changes in these drivers may alter their future distributions is therefore of major importance. However, the drivers of vector populations are largely specific to each vector species and region. Here, we identify the most important human-activity-related and bioclimatic predictors affecting the current distribution and habitat suitability of the mosquito Culex pipiens and potential future changes in its distribution in Spain. We determined the niche of occurrence (NOO) of the species, which considers only those areas lying within the range of suitable environmental conditions using presence data. Although almost ubiquitous, the distribution of Cx. pipiens is mostly explained by elevation and the degree of urbanization but also, to a lesser extent, by mean temperatures during the wettest season and temperature seasonality. The combination of these predictors highlights the existence of a heterogeneous pattern of habitat suitability, with most suitable areas located in the southern and northeastern coastal areas of Spain, and unsuitable areas located at higher altitude and in colder regions. Future climatic predictions indicate a net decrease in distribution of up to 29.55%, probably due to warming and greater temperature oscillations. Despite these predicted changes in vector distribution, their effects on the incidence of infectious diseases are, however, difficult to forecast since different processes such as local adaptation to temperature, vector-pathogen interactions, and human-derived changes in landscape may play important roles in shaping the future dynamics of pathogen transmission.
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Affiliation(s)
- L Gangoso
- Department of Wetland Ecology, Estación Biológica de Doñana, EBD-CSIC, C/ Américo Vespucio 26, 41092, Seville, Spain.
| | - D Aragonés
- Remote Sensing and Geographic Information Systems Laboratory (LAST-EBD), Estación Biológica de Doñana, EBD-CSIC, C/ Américo Vespucio 26, 41092, Seville, Spain
| | - J Martínez-de la Puente
- Department of Wetland Ecology, Estación Biológica de Doñana, EBD-CSIC, C/ Américo Vespucio 26, 41092, Seville, Spain; CIBER of Epidemiology and Public Health (CIBERESP), C/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - J Lucientes
- Animal Health Department, The AgriFood Institute of Aragon (IA2), Faculty of Veterinary Medicine, C/ Miguel Servet 177, 50013, Zaragoza, Spain
| | - S Delacour-Estrella
- Animal Health Department, The AgriFood Institute of Aragon (IA2), Faculty of Veterinary Medicine, C/ Miguel Servet 177, 50013, Zaragoza, Spain
| | - R Estrada Peña
- Animal Health Department, The AgriFood Institute of Aragon (IA2), Faculty of Veterinary Medicine, C/ Miguel Servet 177, 50013, Zaragoza, Spain
| | - T Montalvo
- Agència de Salut Pública de Barcelona, Consorci Sanitari de Barcelona, Plaça Lesseps 8, 08023, Barcelona, Spain; CIBER of Epidemiology and Public Health (CIBERESP), C/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - R Bueno-Marí
- Departamento de Investigación y Desarrollo (I+D), Laboratorios Lokímica, Polígono Industrial El Bony, C/42, n°4, 46470, Catarroja, Valencia, Spain
| | - D Bravo-Barriga
- Department of Animal Health, Veterinary Faculty, University of Extremadura, Av. de la Universidad s/n, 10003, Cáceres, Spain
| | - E Frontera
- Department of Animal Health, Veterinary Faculty, University of Extremadura, Av. de la Universidad s/n, 10003, Cáceres, Spain
| | - E Marqués
- Service of Mosquito Control (Badia de Roses i del Baix Ter), Plaça del Bruel 1, Castelló d'Empúries, 17486, Empuriabrava, Girona, Spain
| | - I Ruiz-Arrondo
- Center of Rickettsiosis and Arthropod-Borne Diseases, Hospital Universitario San Pedro-CIBIR, C/ Piqueras 98, 26006, Logroño, La Rioja, Spain
| | - A Muñoz
- Quimera Biological Systems S.L., Pol. Malpica-Alfindén, C/ Olivo 14, Nave 6, 50171, La Puebla de Alfindén, Zaragoza, Spain
| | - J A Oteo
- Center of Rickettsiosis and Arthropod-Borne Diseases, Hospital Universitario San Pedro-CIBIR, C/ Piqueras 98, 26006, Logroño, La Rioja, Spain
| | - M A Miranda
- Applied Zoology and Animal Conservation group, Department of Biology, University of the Balearic Islands (UIB), Ctra. de Valldemossa, km 7.5, 07122, Palma, Illes Balears, Spain
| | - C Barceló
- Applied Zoology and Animal Conservation group, Department of Biology, University of the Balearic Islands (UIB), Ctra. de Valldemossa, km 7.5, 07122, Palma, Illes Balears, Spain
| | - M S Arias Vázquez
- Zoonoses and Public Health. COPAR Research Group, Faculty of Veterinary, University of Santiago de Compostela, Av. Carvallo Calero, 27002, Lugo, Spain
| | - M I Silva-Torres
- Zoonoses and Public Health. COPAR Research Group, Faculty of Veterinary, University of Santiago de Compostela, Av. Carvallo Calero, 27002, Lugo, Spain
| | - M Ferraguti
- Department of Anatomy, Cellular Biology and Zoology, University of Extremadura, Av. de Elvas s/n, 06006, Badajoz, Spain
| | - S Magallanes
- Department of Anatomy, Cellular Biology and Zoology, University of Extremadura, Av. de Elvas s/n, 06006, Badajoz, Spain
| | - J Muriel
- Department of Anatomy, Cellular Biology and Zoology, University of Extremadura, Av. de Elvas s/n, 06006, Badajoz, Spain; Instituto Pirenaico de Ecología, IPE (CSIC), Av. Nuestra Señora de la Victoria 16, 22700, Jaca, Spain
| | - A Marzal
- Department of Anatomy, Cellular Biology and Zoology, University of Extremadura, Av. de Elvas s/n, 06006, Badajoz, Spain
| | - C Aranda
- Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; Servei de Control de Mosquits, Consell Comarcal del Baix Llobregat, N-340, 08980, Sant Feliu de Llobregat, Barcelona, Spain
| | - S Ruiz
- Service of Mosquito Control de la Diputación Provincial de Huelva, Ctra. Hospital Infanta Elena s/n, 21007, Huelva, Spain
| | - M A González
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development Basque Research and Technology Alliance (BRTA), Berreaga 1, 48160, Derio, Bizkaia, Spain
| | - R Morchón
- Group of Animal and Human dirofilariosis. University of Salamanca, Faculty of Pharmacy, Campus Miguel Unamuno, C/ Lic. Méndez Nieto, s/n, 37007, Salamanca, Spain
| | - D Gómez-Barroso
- Centro Nacional de Epidemiologia. Instituto de Salud Carlos III, C/ Monforte de Lemos 5, 28029, Madrid. Spain; CIBER of Epidemiology and Public Health (CIBERESP), C/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - J Figuerola
- Department of Wetland Ecology, Estación Biológica de Doñana, EBD-CSIC, C/ Américo Vespucio 26, 41092, Seville, Spain; CIBER of Epidemiology and Public Health (CIBERESP), C/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
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Sharifah N, Heo CC, Ehlers J, Houssaini J, Tappe D. Ticks and tick-borne pathogens in animals and humans in the island nations of Southeast Asia: A review. Acta Trop 2020; 209:105527. [PMID: 32447029 DOI: 10.1016/j.actatropica.2020.105527] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 05/04/2020] [Accepted: 05/04/2020] [Indexed: 01/23/2023]
Abstract
Ticks are blood-feeding ectoparasites and major vectors of pathogens that cause infectious diseases in humans and animals worldwide including mammals, birds and reptiles. Despite the growing scientific effort in the 20th century, there is still limited information on ticks and tick-borne pathogens in Southeast Asia, especially concerning medical, veterinary, socioeconomic and agricultural aspects in the island nations. This review provides an overview of the current state of knowledge of ticks and their pathogens in the island nations of Southeast Asia and peninsular Malaysia. We aim to stimulate further research studies on ticks and tick-borne pathogens of human and veterinary importance in this geographical region.
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Affiliation(s)
- Nadiah Sharifah
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia
| | - Chong Chin Heo
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia; Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia.
| | - Julian Ehlers
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Jamal Houssaini
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia; Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia
| | - Dennis Tappe
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
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Leask R, Bath GF. Observations and perceptions of veterinarians and farmers on heartwater distribution, occurrence and associated factors in South Africa. J S Afr Vet Assoc 2020; 91:e1-e8. [PMID: 32633986 PMCID: PMC7343916 DOI: 10.4102/jsava.v91i0.1763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 11/29/2022] Open
Abstract
Background There is currently no scientific evidence regarding the current climatic or other epidemiological factors that could influence the occurrence of heartwater in South Africa. Objectives The objective was to determine whether climatic changes or other epidemiological factors influence the occurence of heartwater in South Africa. Method A survey was conducted to scrutinise these factors using both veterinarians and farmers working in known areas in which heartwater had previously been confirmed to establish the value of each of these factors. Based on the observations, meaningful tendencies were noted, and conclusions drawn. Results These include changes in the spatial distribution of heartwater in many areas, with serious expansion, in some instances, of up to 150 km. In total, 48% of veterinarians and 42% of farmers reported seeing increase in the number of farms affected by heartwater. Climate change as a causative factor indicated by observations of increased average temperatures, milder frosts, less rain and shorter rainy seasons was identified by the majority of farmers but not by as many veterinarians. Respondents in both groups considered vegetation change an important factor. Increasing number of wildlife, especially antelope, was seen as a major factor by most veterinarians and also by many farmers. Both groups identified the movement of livestock and wildlife as an increasingly important factor that should be of major concern for both industries because it leads to the avoidable spread of many diseases apart from heartwater. Conclusion Movement controls should be reinstated and reinforced by vigorously enforced legislation. The role of genetically determined resistance or resilience to heartwater infection in ruminants should be investigated. Breeding better adapted animals could provide part of a sustainable approach to the disease.
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Affiliation(s)
- Rhoda Leask
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria.
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Fonseca MS, Bahiense TC, Silva AAB, Onofrio VC, Barral TD, Souza BMP, Lira-da-Silva RM, Biondi I, Meyer R, Portela RW. Ticks and Associated Pathogens From Rescued Wild Animals in Rainforest Fragments of Northeastern Brazil. Front Vet Sci 2020; 7:177. [PMID: 32373635 PMCID: PMC7179698 DOI: 10.3389/fvets.2020.00177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/17/2020] [Indexed: 12/11/2022] Open
Abstract
The Ixodidae family comprises ticks that are hematophagous ectoparasites and are considered vectors of several hemoparasites from the Anaplasmataceae family and the genus Hepatozoon, Babesia, and Rickettsia. These ectoparasites parasitize domestic and wild animals belonging to several vertebrate groups. Ticks are highly adapted to different biomes and thus possess a wide geographical distribution. In the Brazilian state of Bahia, localized in the Northeast region, there are large rainforest fragments. Studies have rarely been carried out on ticks, and their hemoparasites, that parasitize wild animals in this region. Thus, this study aimed to identify the tick species parasitizing wild animals rescued in rainforest fragments of Bahia and investigate the presence of hemoparasites in tick tissues. During a 2-year period, 238 ticks were collected from 41 wild mammalians, reptiles, and amphibians. These ectoparasites were taxonomically classified according to their morphological characteristics. The ticks identified belonged to five different species from the Ixodidae family: Amblyomma varium, Amblyomma rotundatum, Amblyomma nodosum, Ixodes loricatus, and Rhipicephalus sanguineus. For the first time, an A. rotundatum parasitizing the Mesoclemmys tuberculata turtle was described. PCR assays using DNA extracted from salivary glands or midgut of the ticks were performed to detect specific DNA fragments of hemoparasites from the genus Rickettsia, Ehrlichia, Babesia, Hepatozoon, and from the Anaplasmataceae family. The results showed positive detection of the Rickettsia genus (7.9%), Anaplasmataceae family (15.8%), and Hepatozoon genus (15.8%). Specific DNA from the Ehrlichia and Babesia genera were not detected in these samples. Specific DNA from members of the Anaplasmataceae family was detected in A. varium for the first time. The present work showed that amphibians, reptiles, and mammals from Bahia's Atlantic Forest areparasitized by different tick species, and that these ectoparasites present pathogens in their tissues that impact both humans and animals due to their zoonotic potential.
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Affiliation(s)
- Maísa Santos Fonseca
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Thiago Campanharo Bahiense
- Laboratório de Parasitologia Veterinária, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Aretha Alves Borges Silva
- Laboratório de Parasitologia Veterinária, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Valeria Castilho Onofrio
- Laboratório Especial de Coleções Zoológicas, Instituto Butantan, São Paulo, Brazil.,Mestrado em Medicina e Bem-Estar Animal, Universidade Santo Amaro, São Paulo, Brazil
| | - Thiago Doria Barral
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Rejane Maria Lira-da-Silva
- Núcleo Regional de Ofiologia e Animais Peçonhentos da Bahia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal da Bahia, Salvador, Brazil
| | - Ilka Biondi
- Laboratório de Animais Peçonhentos e Herpetologia, Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Feira de Santana, Brazil
| | - Roberto Meyer
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Ricardo Wagner Portela
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
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Paterson SK, Godsmark CN. Heat-health vulnerability in temperate climates: lessons and response options from Ireland. Global Health 2020; 16:29. [PMID: 32228631 PMCID: PMC7106697 DOI: 10.1186/s12992-020-00554-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/05/2020] [Indexed: 11/29/2022] Open
Abstract
Background In Ireland, rising temperatures remains the climate projection that national climate scientists associate with the highest degree of confidence. However, the health challenge of heat has been largely absent from Ireland’s public health sector. This is epitomised by the lack of a comprehensive public health-focused heat-health action plan or country-specific codes of practice for heat-health when working outdoors. Our objective is to highlight the anticipated heat-health challenges in Ireland, and other temperate regions, through analysing vulnerable groups and systems, reinforcing the need to respond. Methods A scoping literature review was conducted to determine how heat affects health of the vulnerable in temperate climatic regions, with a focus on Ireland. Additionally, national Google Trends data was coarsely analysed to determine whether heat is a growing societal concern. Results and discussion The heat-vulnerable include: older people; chronically ill; infants, pregnant women, children; outdoor workers; socio-economically disadvantaged; urban dwellers; food systems and the health sector. Google Trends data suggest an increase in heat-related health searches over time, demonstrating rising levels of concern to temperature increases, reinforcing a gap in national policy associated with communication of, and response to, the heat-health challenge. Specific, actionable recommendations for adaptation and mitigation strategies are proposed. Conclusion Heat poses a public and occupational health challenge, receiving limited attention in Ireland. Lack of a co-ordinated effort, places vulnerable populations at risk. Our recommendations, with reference to vulnerable groups and acknowledging the multi-sectoral nature of heat-health and climate change, advocate for the adoption of a “health and climate change in all policies” approach and the development of a public health-focused heat-health action plan.
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Affiliation(s)
- Shona K Paterson
- College of Business, Arts and Social Sciences, Brunel University London, Uxbridge, UB8 3PH, UK
| | - Christie Nicole Godsmark
- School of Public Health, University College Cork, Western Gateway Building, Western Road, Cork, T12 XF62, Ireland. .,Environmental Research Institute, University College Cork, Cork, Ireland.
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First Report on Clinical Feline Heartworm ( Dirofilaria Immitis) Infection in Romania. Helminthologia 2020; 57:49-56. [PMID: 32063740 PMCID: PMC6996259 DOI: 10.2478/helm-2020-0009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/16/2019] [Indexed: 11/20/2022] Open
Abstract
Dirofilaria immitis (Nematoda: Filarioidea) is the causative agent of heartworm disease (HWD), a severe and potentially fatal condition in dogs. Although cats are considered more resistant to infection than dogs, they are also susceptible to heartworm infection. Moreover, the clinical importance of feline dirofilariosis has increased in recent years, especially in heartworm endemic areas. In contrast to dog, definitive antemortem diagnosis of heartworm infection in cat is difficult to achieve and a combination of testing methods must be used for clinical confirmation. Here we describe a clinical case of heartworm infection in a 12-year-old male mixed breed cat, originated from Southern Romania, which was referred to a veterinary clinic with a history of vomiting and clinical signs of respiratory distress. The thoracic radiograph showed a diffuse bronchointerstitial pattern of the pulmonary parenchyma. The serological test for D. immitis circulating antibody was positive and heartworms were visualized by echocardiography in the main pulmonary artery. In conclusion, the present study clearly shows that cats are at risk for D. immitis infection in heartworm-endemic areas in Romania. Additionally, the findings highlight the urgent need for increased awareness among veterinary practitioners of the existence of feline heartworm diseases and for adequate prophylactic measures to be applied. To our knowledge, this is the first report on clinical evolution and radiographic and echocardiographic features of a naturally heartworm-infected cat in Romania.
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Simultaneous differential detection of canine blood parasites: Multiplex high-resolution melting analysis (mHRM). Ticks Tick Borne Dis 2020; 11:101370. [PMID: 31924501 DOI: 10.1016/j.ttbdis.2020.101370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 11/28/2019] [Accepted: 01/02/2020] [Indexed: 11/21/2022]
Abstract
Recently, the incidence of canine infection by the tick-borne parasites Babesia spp., Hepatozoon canis, Ehrlichia canis and Anaplasma platys has been increasing globally. We have developed a multiplex high-resolution melting analysis (mHRM) technique to reduce the time demands and costs associated with detecting haemoparasites in canine blood, while increasing the degree of reliability of this method of analysis. We have designed primers that are specific for protozoans (B. vogeli and H. canis) and Rickettsia-like bacteria (E. canis and A. platys) based on the 18S or 16S rDNA sequences, respectively. Two primer pairs (Protz18S-C and Bact16S-A) were found to be suitable for detecting these agents since their melting temperatures (Tm) exhibited discernible differences among the four haemoparasites, A. platys, B. vogeli, E. canis and H. canis (83.10 °C, 82.41 °C, 80.37 °C and 78.56 °C, respectively). The sequences acquired from these PCR products were >94 % identical to those of A. platys, B. vogeli, E. canis and H. canis in GenBank. The limit of detection (LOD) for B. vogeli, E. canis and A. platys was 103 copies/μl, while the LOD for H. canis was 104 copies/μl. Of the 68 dogs tested, 28 (41 %) were infected with these agents. The most commonly occurring infection involved E. canis, followed by B. vogeli, A. platys and H. canis, with infection percentages of 26 %, 13 %, 7 % and 6 %, respectively. These results demonstrate that mHRM can serve as a rapid, economical and reliable tool for the detection of parasitic diseases in canine blood for diagnosis and epidemiology.
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Medkour H, Laidoudi Y, Lafri I, Davoust B, Mekroud A, Bitam I, Mediannikov O. Canine vector-borne protozoa: Molecular and serological investigation for Leishmania spp., Trypanosoma spp., Babesia spp., and Hepatozoon spp. in dogs from Northern Algeria. Vet Parasitol Reg Stud Reports 2019; 19:100353. [PMID: 32057382 DOI: 10.1016/j.vprsr.2019.100353] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 11/16/2019] [Accepted: 11/16/2019] [Indexed: 11/17/2022]
Abstract
Dogs are competent reservoirs/hosts of several protozoan pathogens transmitted by blood-feeding arthropods. Throughout their long history of domestication, they have served as a link for the exchange of parasites among livestock, wildlife, and humans and therefore remain an important source of emerging and re-emerging diseases. In Algeria, while canine leishmaniosis (CanL) is well known to be endemic, no data are available on other vector-borne protozoans. Here, we investigate the occurrence and diversity of trypanosomes, piroplasms and Hepatozoon spp. and update the epidemiological status of CanL in dogs from Kabylia, northern Algeria. A total of 227 dogs from three regions of Kabylia were enrolled, including 77 dogs with clinical signs. Dogs were clinically examined and were tested for L. infantum antibodies using a Rapid Immuno-Migration (RIM™) and a quantitative indirect Immunofluorescence Antibody Test (IFAT). PCR screening and sequencing were performed for vector-borne protozoa. Sixty two percent (141/227) of dogs presented at least one infection, whereas 26% (59/227) were co-infected. L. infantum antibodies were detected in 35.7% (81/227) of dogs including 88.7% (68/77) of sick dogs. Molecular investigation revealed prevalence of: 6.6% (15/227), 13.2% (30/227), 41% (93/227) for Trypanosoma spp., B. vogeli and H. canis, respectively. T. evansi (3.1%) and potential new subspecies of T. congolense had been identified. Dog''s clinical status correlates positively with L. infantum antibody titers and the presence of co-infections. Susceptibility to CanL varied according to the dog's aptitude and guard dogs were more infected (51%) (P-value = .001). B. vogeli infection was more frequent in juveniles than adults (32% vs 9%, P-value < .001) and in females than males (21% vs 10%, P-value = .02). To the authors' knowledge, this is the first report on vector-borne protozoa infected dogs in Algeria. Current results are important not only for animal health, but also to avoid serious public health and livestock problems.
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Affiliation(s)
- Hacène Medkour
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEФI), France; UMR Aix-Marseille Université, IRD, APHM -19-21, Bd Jean Moulin, 13385 Marseille Cedex 05, France; PADESCA Laboratory, Veterinary Science Institute, University Constantine 1, 25100, El Khroub, Algeria
| | - Younes Laidoudi
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEФI), France; UMR Aix-Marseille Université, IRD, APHM -19-21, Bd Jean Moulin, 13385 Marseille Cedex 05, France
| | - Ismail Lafri
- IHU Méditerranée Infection - Vectors-Tropical and Mediterranean Infections (VITROME), UMR Aix-Marseille Université, IRD, SSA, APHM -19-21, Bd Jean Moulin, 13385 Marseille Cedex 05, France; Institute of Veterinary Sciences, University of Blida 1, Algeria
| | - Bernard Davoust
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEФI), France
| | - Abdeslam Mekroud
- PADESCA Laboratory, Veterinary Science Institute, University Constantine 1, 25100, El Khroub, Algeria
| | - Idir Bitam
- IHU Méditerranée Infection - Vectors-Tropical and Mediterranean Infections (VITROME), UMR Aix-Marseille Université, IRD, SSA, APHM -19-21, Bd Jean Moulin, 13385 Marseille Cedex 05, France; Superior School of Food Sciences and Food Industries of Algiers, Algeria
| | - Oleg Mediannikov
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEФI), France.
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Zhang XL, Li XW, Li WF, Huang SJ, Shao JW. Molecular detection and characterization of Bartonella spp. in pet cats and dogs in Shenzhen, China. Acta Trop 2019; 197:105056. [PMID: 31175861 DOI: 10.1016/j.actatropica.2019.105056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 11/30/2022]
Abstract
Bartonella spp. are emerging vector-borne pathogens distributed worldwide that can infect humans and a wide range of mammals including small companion animals (cats and dogs). An increasing number of studies from the worldwide have reported cat and dog Bartonella infections in recently years. Cats and dogs are the primary reservoir or accidental hosts for Bartonella henselae, the main causal agent of human cat scratch disease. Since pet cat and dog sharing human living environment and have the direct and intimate contact with humans, pet cats and dogs may represent excellent epidemiological sentinels for Bartonella infection in humans. In this study, 475 blood samples were collected from pet cats and dogs in local animal hospitals located at five districts of Shenzhen City, and detected the presence of Bartonella. Bartonella DNA was detected in eight samples collected from pet cats, no positive sample was detected from pet dog samples. Sequence comparison and phylogenetic analysis revealed that the eight sequences of Bartonella identified here shared the highest identity with B. henselae. Given the intimate contact between pet animals and humans, many attentions should be paid to prevent the Bartonella infections originate from pet cats or dogs, although the Bartonella infection rate in pet cats and dogs might be rather low.
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Affiliation(s)
- Xue-Lian Zhang
- Key Laboratory for Preventive Research of Emerging Animal Diseases, Foshan University, Foshan 528231, Guangdong, China; College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Xiao-Wen Li
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Wen-Feng Li
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Shu-Jian Huang
- Key Laboratory for Preventive Research of Emerging Animal Diseases, Foshan University, Foshan 528231, Guangdong, China; College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Jian-Wei Shao
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China; Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China.
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Zhang YK, Yu ZJ, Wang D, Bronislava V, Branislav P, Liu JZ. The bacterial microbiome of field-collected Dermacentor marginatus and Dermacentor reticulatus from Slovakia. Parasit Vectors 2019; 12:325. [PMID: 31248443 PMCID: PMC6598266 DOI: 10.1186/s13071-019-3582-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 06/21/2019] [Indexed: 11/10/2022] Open
Abstract
Background The important roles of microbial flora in tick biology and ecology have received much attention. Dermacentor marginatus and Dermacentor reticulatus are known vectors of various pathogens across Europe, including Slovakia. However, their bacterial microbiomes are poorly explored. Methods In this study, bacterial microbiomes of field-collected D. marginatus and D. reticulatus from Slovakia were characterized using 16S rRNA high-throughput sequencing. Results Different analyses demonstrated that the D. marginatus and D. reticulatus microbiomes differ in their diversity and taxonomic structures. Furthermore, species- and sex-specific bacteria were detected in the two species. A possible bacterial pathogen “Candidatus Rhabdochlamydia sp.” was detected from D. marginatus males. Among the observed bacteria, Rickettsia showed high abundance in the two species. Several maternally inherited bacteria such as Coxiella, Arsenophonus, Spiroplasma, Francisella and Rickettsiella, were abundant, and their relative abundance varied depending on tick species and sex, suggesting their biological roles in the two species. Conclusions The bacterial microbiomes of field-collected D. marginatus and D. reticulatus were shaped by tick phylogeny and sex. Maternally inherited bacteria were abundant in the two species. These findings are valuable for understanding tick-bacteria interactions, biology and vector competence of ticks. Electronic supplementary material The online version of this article (10.1186/s13071-019-3582-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan-Kai Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, China
| | - Zhi-Jun Yu
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, China
| | - Duo Wang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, China
| | - Víchová Bronislava
- Institute of Parasitology, Slovak Academy of Sciences, 04001, Kosice, Slovak Republic
| | - Peťko Branislav
- Institute of Parasitology, Slovak Academy of Sciences, 04001, Kosice, Slovak Republic.,University of Veterinary Medicine and Pharmacy in Kosice, 04185, Kosice, Slovak Republic
| | - Jing-Ze Liu
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, China.
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Madut NA, Muleme J, Kankya C, Nasinyama GW, Muma JB, Godfroid J, Jubara AS, Muwonge A. The Epidemiology of Zoonotic Brucellosis in Bahr el Ghazal Region of South Sudan. Front Public Health 2019; 7:156. [PMID: 31297365 PMCID: PMC6607442 DOI: 10.3389/fpubh.2019.00156] [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: 05/05/2018] [Accepted: 05/28/2019] [Indexed: 11/13/2022] Open
Abstract
Background: In this study, we focused on three zoonotic brucellosis risk groups; abattoir workers, febrile cases at Wau hospital and cattle herders, in Bahr el Ghazal region, South Sudan. Competitive c-ELISA was used to detect anti-Brucella antibodies in 725 individuals between December 2015 and May 2016. In addition, questionnaire metadata, focus group discussions and key informant interviews were used to characterize the epidemiology of zoonotic brucellosis in this region. Results: Overall, we estimate 27.2 % (95% CI = 23.9-30.6) brucellosis sero-prevalence; 32.1% (95% CI = 26.2-38.4), 23.0% (95% CI = 19.1-27.4) and 34.6% (95% CI = 24.4-46.3) among abattoir workers, febrile cases, and herders, respectively. Marital status (Single, OR = 0.58, 95%CI: 0.36-0.91, P = 0.02) and ethnicity (Kerash OR = 6.01, 95%CI: 1.97-21.10, P = 0.003 and Balanda, OR = 3.78, 95%CI: 1.42-12.02, P = 0.01) were associated with brucellosis. While gender and ethnicity were important factors for general awareness of zoonotic diseases. Highly ranked occupations at risk included veterinarian, butchers and milk handlers. We also identified covariate patterns for clinical diagnostics and public health interventions. Conclusion: We report the highest sero-prevalence of zoonotic brucellosis in three risk groups in the East African region. All this is not only occurring in a population with limited awareness that brucellosis is a zoonotic disease but also where one in nine health workers tested was sero-positive. We identified social demographic associations with brucellosis, however, the qualitative analysis suggests these are more complex and nuanced. Therefore, future studies could benefit from the use of the mixed methods approach to add extensiveness and depth to our understanding of zoonotic disease drivers, in order to implement mitigating measures such as cattle vaccination.
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Affiliation(s)
- Nuol Aywel Madut
- Department of Clinical Studies, Faculty of Veterinary Science, University of Bahr el Ghazal, Wau, South Sudan.,Department of Biosecurity, Ecosystems & Veterinary Public Health (BEP), College of Veterinary Medicine Animal Resources & Biosecurity (COVAB), Makerere University, Kampala, Uganda
| | - James Muleme
- Department of Biosecurity, Ecosystems & Veterinary Public Health (BEP), College of Veterinary Medicine Animal Resources & Biosecurity (COVAB), Makerere University, Kampala, Uganda.,Department of Disease Control and Environmental Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Clovice Kankya
- Department of Biosecurity, Ecosystems & Veterinary Public Health (BEP), College of Veterinary Medicine Animal Resources & Biosecurity (COVAB), Makerere University, Kampala, Uganda
| | - George William Nasinyama
- Department of Biosecurity, Ecosystems & Veterinary Public Health (BEP), College of Veterinary Medicine Animal Resources & Biosecurity (COVAB), Makerere University, Kampala, Uganda
| | - John Bwalya Muma
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Jacques Godfroid
- Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Ambrose Samuel Jubara
- Department of Clinical Studies, Faculty of Veterinary Science, University of Bahr el Ghazal, Wau, South Sudan
| | - Adrian Muwonge
- Division of Genetics and Genomics, The Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
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Clow KM, Leighton PA, Pearl DL, Jardine CM. A framework for adaptive surveillance of emerging tick-borne zoonoses. One Health 2019; 7:100083. [PMID: 30809583 PMCID: PMC6376153 DOI: 10.1016/j.onehlt.2019.100083] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 02/07/2019] [Accepted: 02/09/2019] [Indexed: 12/19/2022] Open
Abstract
Significant global ecological changes continue to drive emergence of tick-borne zoonoses around the world. This poses an important threat to both human and animal health, and highlights the need for surveillance systems that are capable of monitoring these complex diseases effectively across different stages of the emergence process. Our objective was to develop an evidence-based framework for surveillance of emerging tick-borne zoonoses. We conducted a realist review to understand the available approaches and major challenges associated with surveillance of emerging tick-borne zoonoses. Lyme disease, with a specific focus on emergence in Canada, was used as a case study to provide real-world context, since the process of disease emergence is ongoing in this country. We synthesize the results to propose a novel framework for adaptive surveillance of emerging tick-borne zoonoses. Goals for each phase of disease emergence are highlighted and approaches are suggested. The framework emphasizes the needs for surveillance systems to be inclusive, standardized, comprehensive and sustainable. We build upon a growing body of infectious disease literature that is advocating for reform to surveillance systems. Although our framework has been developed for tick-borne zoonoses, it is flexible and has the potential to be applied to a variety of other vector-borne and zoonotic diseases.
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Affiliation(s)
- Katie M. Clow
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Patrick A. Leighton
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montréal, 3200 Rue Sicotte, Saint-Hyacinthe, Quebec J2S 2M2, Canada
| | - David L. Pearl
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Claire M. Jardine
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
- Canadian Wildlife Health Cooperative, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
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Krčmar S. Diversity, ecology, and seasonality of hard ticks (Acari: Ixodidae) in eastern Croatia. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2019; 44:18-29. [PMID: 31124224 DOI: 10.1111/jvec.12325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
The diversity of hard tick fauna was studied in different forest communities in 48 localities of eastern Croatia using the dragging-flagging method and by hand from ten different vertebrate hosts. A total of 2,225 specimens comprising seven species in three genera were identified. Ixodes ricinus, the most abundant species (72.8% of all collected specimens) was recorded in 44 localities, followed by Dermacentor reticulatus in 19 localities, while the other five species (D. marginatus, H. concinna, H. inermis, I. canisuga, and I. hexagonus) were recorded in fewer localities. The highest ratio (67% of collected ticks) was in the adult stage with the predominance of females. The numbers of collected females, males, and nymphs of I. ricinus and H. concinna differed significantly. Ten new tick-host associations in Croatia were recorded. Fifty-three animals were infested with one tick species. Single species infestation with I. ricinus was found in 45.8% of animals, followed by D. reticulatus with 25.4%, D. marginatus with 10.2%, H. inermis and I. hexagonus with 3.4%, and I. canisuga with 1.7%. Coinfestation with two species of ticks were recorded in six animals. Ixodes ricinus, H. inermis, and D. reticulatus showed bimodal seasonal activity; for other species unimodal activity patterns were recorded.
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Affiliation(s)
- Stjepan Krčmar
- Department of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, HR-31000 Osijek, Croatia
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Silva BTGD, Souza AMD, Campos SDE, Macieira DDB, Lemos ERSD, Favacho ARDM, Almosny NRP. Bartonella henselae and Bartonella clarridgeiae infection, hematological changes and associated factors in domestic cats and dogs from an Atlantic rain forest area, Brazil. Acta Trop 2019; 193:163-168. [PMID: 30825447 DOI: 10.1016/j.actatropica.2019.02.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 10/27/2022]
Abstract
Cats are considered main reservoir of Bartonella henselae, which is transmitted to other cats especially through Ctenocephalides felis fleas, and to humans through scratching and biting. Serra da Tiririca State Park (PESET) is an Atlantic Forest area that shelters a wide variety of endemic fauna. Recently, the park has been suffering due to irregular housing construction and domestic animal population that interacts with humans and wildlife. Given that surveillance policies for animals are part of the global Strategic Framework for One Health, the aim of this study was to detect Bartonella spp. DNA in cats and dogs, evaluating laboratory changes and associated factors. Blood samples of 124 dogs and 89 cats were collected for hematology and serum chemistry analysis. DNA was extracted and tested by conventional polymerase chain reaction (PCR) targeting a fragment of the citrate synthase (gltA) gene of Bartonella spp. with specific primers. Positive samples were sequenced to identify species. Bartonella henselae and B. clarridgeiae were detected in 24.7% of cats, being, for our knowledge, the first report of B. clarridgeiae in cats from Rio de Janeiro, Brazil. None of the samples obtained from dogs tested positive in the PCR assays. No statistical significance was observed in physical and laboratory exams. We suggest that cats that inhabit PESET can be considered sources of Bartonella sp. for other cats and humans. We highlight that infected cats did not present clinical or laboratory alterations. We alert for the need of care measures, avoiding scratch and bite, particularly in immunocompromised people.
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Sá ELRD, Rodovalho CDM, Sousa NPRD, Sá ILRD, Bellinato DF, Dias LDS, Silva LCD, Martins AJ, Lima JBP. Evaluation of insecticide resistance in Aedes aegypti populations connected by roads and rivers: the case of Tocantins state in Brazil. Mem Inst Oswaldo Cruz 2019; 114:e180318. [PMID: 30916115 PMCID: PMC6434582 DOI: 10.1590/0074-02760180318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 02/19/2019] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND The longstanding application of insecticides for vector control without
periodic monitoring of the population response to these chemicals can
directly drive the selection of resistant populations of vector mosquitoes.
Tocantins is the newest state of the Brazilian Federation. Despite a
historically high number of dengue cases, studies and monitoring data
concerning insecticide resistance in the state are lacking. OBJECTIVES To verify the resistance status of Aedes aegypti from 10
populations distributed throughout the state connected by rivers and
roads. METHODS Between 50 and 150 ovitraps were installed in house gardens within each
municipality. Collection points were established based on the importance of
the towns and on geographic aspects. Dose response bioassays were performed
in accordance with World Health Organization guidelines. Molecular assays
were conducted to detect kdr mutations, which are related
to pyrethroid resistance. FINDINGS Of the 3,200 ovitrap paddles analysed, 25.8% contained eggs, with a total of
55,687 eggs collected. With the exception of Caseara, all evaluated
populations were considered to be resistant to temephos. The data showed
different levels of resistance to deltamethrin among the samples. Caseara
and Guaraí showed the lowest RR95 values. On average, the
NaVR1 kdr allele was most frequent (40.3%),
followed by NaVS (38.1%), and NaVR2 (21.6%). Palmas,
the capital of the state, had the highest frequency of kdr
alleles (87.5%). MAIN CONCLUSIONS With the exception of Palmas, the towns with the highest indexes (ovitrap
positivity, number and density of eggs), as well with high levels of
resistance and kdr alleles were located along the BR-153
road, indicating that the flow of people and cargo can contribute to the
dispersion of the vector and potentially resistance. This study contributes
substantially to knowledge regarding the insecticide resistance profile of
Tocantins mosquito populations; the data generated via the study could
facilitate the judicious use of insecticides by vector control programs.
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Affiliation(s)
- Eric Luiz Rodrigues de Sá
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Fundação de Medicina Tropical do Tocantins, Laboratório de Entomologia Médico-Veterinária, Araguaína, TO, Brasil
| | - Cynara de Melo Rodovalho
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
| | | | - Ivy Luizi Rodrigues de Sá
- Fundação de Medicina Tropical do Tocantins, Laboratório de Entomologia Médico-Veterinária, Araguaína, TO, Brasil
| | - Diogo Fernandes Bellinato
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
| | - Luciana Dos Santos Dias
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
| | - Luana Carrara da Silva
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
| | - Ademir Jesus Martins
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
| | - José Bento Pereira Lima
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Fisiologia e Controle de Artrópodes Vetores, Rio de Janeiro, RJ, Brasil.,Instituto de Biologia do Exército, Laboratório de Entomologia, Rio de Janeiro, RJ, Brasil
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Godsmark CN, Rother HA. Part of the solution - an engaged scholarship approach for the sustainable reduction of street pesticides and poisonings. Glob Public Health 2019; 14:1535-1545. [PMID: 30887912 DOI: 10.1080/17441692.2019.1590619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In low-income townships, pests are rife, a nuisance and are vectors of disease. Although alternatives are available, chemical means of pest control is often the first resort due to lack of knowledge of other methods, convenience and presumed efficacy. The demand for chemical pest control has created a unique business opportunity for informal vendors in South Africa servicing predominately low socio-economic communities. That is the selling of 'street pesticides', which are either containing agricultural pesticides too toxic for domestic use or illegally imported products. Poisonings from street pesticide exposures, particularly in children, are increasingly common and, along with pest-related diseases, creates a double burden of disease. Solutions are needed to decrease these incidences and to develop pest control strategies that are low- or non-toxic. It is imperative that, for sustainable problem-solving, all stakeholders, including vendors, be part of the solution in tackling this public health issue. This manuscript outlines an engaged scholarship approach for developing a sustainable resolution for reducing street pesticide use. This cyclical and iterative approach encompasses: the establishment of relationships, co-creation of solutions, co-implementation, co-monitoring, co-evaluation, co-reflection and co-re-design. The significance of the research and proposed engagement are discussed, as are anticipated challenges.
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Affiliation(s)
- Christie Nicole Godsmark
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town , Cape Town , South Africa
| | - Hanna-Andrea Rother
- Division of Environmental Health, School of Public Health and Family Medicine, University of Cape Town , Cape Town , South Africa
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Cauvin A, Hood K, Shuman R, Orange J, Blackburn JK, Sayler KA, Wisely SM. The impact of vector control on the prevalence of Theileria cervi in farmed Florida white-tailed deer, Odocoileus virginianus. Parasit Vectors 2019; 12:100. [PMID: 30867021 PMCID: PMC6417225 DOI: 10.1186/s13071-019-3344-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 02/26/2019] [Indexed: 12/21/2022] Open
Abstract
Background Vector-borne diseases exert a global economic impact to the livestock industry. Understanding how agriculture practices and acaricide usage affect the ecology of these diseases is important for making informed management decisions. Theileria cervi is a hemoprotozoan parasite infecting white-tailed deer (Odocoileus virginianus) and is transmitted by the lone star tick, Amblyomma americanum. The purpose of this study was to determine if acaricide treatment decreased hematozoan prevalence in farmed white-tailed deer when compared to geographically-close wild deer or altered the genotypes of T. cervi present. Results We compared prevalence of T. cervi in 52 farmed adult white-tailed deer which were regularly treated with permethrin and ivermectin, 53 farmed neonates that did not receive treatment for vector control, and 42 wild deer that received no form of chemical vector control. Wild deer had significantly higher prevalence of T. cervi than farmed deer. Additionally, no neonate fawns tested positive for T. cervi, and we found that age was a significant predictor of infection status. We found no difference in genotypic variation in T. cervi isolates between adjacent herds of farmed and wild white-tailed deer, although a divergent genotype X was identified. Chronic infection with T. cervi had no significant effects on mortality in the white-tailed deer. Conclusions We found significantly lower prevalence of T. cervi infection in farmed (40%) compared to wild white-tailed deer (98%), which may be due to the inclusion of chemical vector control strategies. More work is needed to determine the implications, if any, of mixed genotypic infections of T. cervi, although we found no significant effect of infection with Theileria on mortality in farmed deer. Theileria infection does sometimes cause disease when an animal is stressed, immunosuppressed, or translocated from non-endemic to endemic regions.
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Affiliation(s)
- Allison Cauvin
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - Karen Hood
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - Rebecca Shuman
- Florida Fish and Wildlife Conservation Commission, Gainesville, FL, USA
| | - Jeremy Orange
- Spatial Epidemiology & Ecology Research Laboratory, Department of Geography, University of Florida, Gainesville, FL, USA
| | - Jason K Blackburn
- Spatial Epidemiology & Ecology Research Laboratory, Department of Geography, University of Florida, Gainesville, FL, USA.,Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA
| | - Katherine A Sayler
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - Samantha M Wisely
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA.
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50
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Malone JB, Bergquist R, Martins M, Luvall JC. Use of Geospatial Surveillance and Response Systems for Vector-Borne Diseases in the Elimination Phase. Trop Med Infect Dis 2019; 4:E15. [PMID: 30669341 PMCID: PMC6473698 DOI: 10.3390/tropicalmed4010015] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/13/2022] Open
Abstract
The distribution of diseases caused by vector-borne viruses and parasites are restricted by the environmental requirements of their vectors, but also by the ambient temperature inside the host as it influences the speed of maturation of the infectious agent transferred. The launch of the Soil Moisture Active Passive (SMAP) satellite in 2015, and the new ECOSTRESS instrument onboard the International Space Station (ISS) in 2018, established the leadership of the National Aeronautics Space Administration (NASA) in ecology and climate research by allowing the structural and functional classification of ecosystems that govern vector sustainability. These advances, and the availability of sub-meter resolution data from commercial satellites, contribute to seamless mapping and modelling of diseases, not only at continental scales (1 km²) and local community or agricultural field scales (15⁻30 m²), but for the first time, also at the habitat⁻household scale (<1 m²). This communication presents current capabilities that are related to data collection by Earth-observing satellites, and draws attention to the usefulness of geographical information systems (GIS) and modelling for the study of important parasitic diseases.
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Affiliation(s)
- John B Malone
- Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | | | - Moara Martins
- Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Jeffrey C Luvall
- National Aeronautics Space Administration (NASA), MSFC ST11, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805, USA.
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