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Bogdan AM, Mitrea IL, Ionita M. Equine Granulocytic Anaplasmosis: A Systematic Review and Meta-Analysis on Clinico-Pathological Findings, Diagnosis, and Therapeutic Management. Vet Sci 2024; 11:269. [PMID: 38922016 DOI: 10.3390/vetsci11060269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024] Open
Abstract
Equine granulocytic anaplasmosis (EGA) is a tick-borne disease affecting horses worldwide, caused by Anaplasma phagocytophilum. The disease ranges from non-specific clinical signs to fatal outcomes. This paper aimed to analyze EGA cases reported in peer-reviewed journals, particularly on clinico-pathological findings, diagnosis, and therapeutic management. Overall, 189 clinical cases from 31 publications were included in the study. Extensive symptomatology for the EGA cases was reported, of which mostly was fever (90.30%), followed by limb edema (48.51%), anorexia (41.79%), depression (32.84%), icterus (22.39%), ataxia (17.91), tachycardia (16.42%), and lethargy (15.67%). Laboratory tests revealed thrombocytopenia (90.32%), anemia (75%), decreased hematocrit (70.59%), leukopenia (55.88%), lymphopenia (58.14%), and neutropenia (41.67%) as the most common hematological abnormalities. For a subset of tested animals, hyperbilirubinemia (20/29), hyperfibrinogenemia (13/15), and hyponatremia (10/10) were also reported. The diagnosis was established by microscopic identification of morulae (in 153 cases), and/or PCR (120 cases), isolation (1 case), or serology (56 cases). For treatment, oxytetracycline was used in the majority (52.24%) of EGA cases, but recovery without antibiotherapy (10.34%) was also noted. In conclusion, the variety of clinical and pathological findings and the challenging therapeutic approaches reported suggest that EGA should be included in the differential diagnosis when fever occurs.
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Affiliation(s)
- Andreea Monica Bogdan
- Department of Parasitology and Parasitic Diseases & Animal Biology, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Ioan Liviu Mitrea
- Department of Parasitology and Parasitic Diseases & Animal Biology, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Mariana Ionita
- Department of Parasitology and Parasitic Diseases & Animal Biology, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
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Barradas PF, Marques J, Tavares C, Brito NV, Mesquita JR. Detection of tick-borne pathogens in Rhipicephalus bursa ticks collected from the autochthonous Garrano breed of horses in Portugal. Vet Parasitol Reg Stud Reports 2024; 51:101033. [PMID: 38772649 DOI: 10.1016/j.vprsr.2024.101033] [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: 10/09/2023] [Revised: 04/14/2024] [Accepted: 05/05/2024] [Indexed: 05/23/2024]
Abstract
The Garrano is a semi-feral horse breed native to several mountains in the northern Iberian Peninsula. Despite being endangered, this unique breed of pony has managed to survive in the wild and continues to be selectively bred, highlighting their remarkable resilience and adaptability to harsh environments. Wildlife plays a critical role in the survival of tick vectors in their natural habitats and the transfer of tick-borne pathogens, as they can serve as reservoir hosts for many agents and amplifiers for these vectors. The semi-feral lifestyle of the Garrano horses makes them particularly vulnerable to exposure to numerous tick species throughout the year. Therefore, the aim of this study was to investigate the occurrence of Anaplasma, Ehrlichia, Babesia, Theileria, and spotted fever rickettsiae in the Garrano horse ticks to obtain a knowledge of circulating agents in this host population. The collected ticks (n = 455) were identified as Rhipicephalus bursa. DNA specimens were organized in pools of 5 ticks, for molecular screening. Pools PCR results confirmed the presence of Candidatus Rickettsia barbariae (n = 12 for the ompB gene, n = 11 for the ompA gene and n = 6 for the gltA gene), Babesia bigemina (n = 1), Babesia caballi (n = 3), Theileria equi (n = 15) and Theileria haneyi (n = 1).These results confirm the circulation of an emerging rickettsial spotted fever group member, Candidatus R. barbariae, in R. bursa ticks. Our findings demonstrated that Candidatus R. barbariae co-circulates with B. bigemina and T. equi, which are vectored by R. bursa. We are reporting for the first time, the detection of T. haneyi among R. bursa ticks feeding in the Garrano horses in Portugal. Surveillance studies for tick-borne infections are essential to provide information that can facilitate the implementation of preventive and control strategies.
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Affiliation(s)
- Patrícia F Barradas
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal; 1H -TOXRUN - One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal.
| | - João Marques
- Nanta Portugal, 2615-180 Alverca do Ribatejo, Portugal
| | - Catarina Tavares
- 1H -TOXRUN - One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal; i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Nuno Vieira Brito
- 1H -TOXRUN - One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal
| | - João R Mesquita
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal; ICBAS-School of Medicine and Biomedical Sciences, Porto University, Porto, Portugal
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3
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Seroprevalence of Anti- Theileria equi Antibodies in Horses from Three Geographically Distinct Areas of Romania. Pathogens 2022; 11:pathogens11060669. [PMID: 35745523 PMCID: PMC9229635 DOI: 10.3390/pathogens11060669] [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: 04/22/2022] [Revised: 06/05/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023] Open
Abstract
Equine piroplasmosis (EP) is an endemic tick-borne disease found in most countries around the world. It affects all species of Equidae, and it is caused by Theileria equi, Babesia caballi and T. haneyi. The research herein is the second study on the prevalence of piroplasms in Romania conducted in the past two decades. The aim of this study was to assess the seroprevalence of anti-Theileria equi antibodies and the geographical distribution of this disease in the southwest, west, and northwest regions of Romania in order to obtain a more thorough understanding of the parasitological status of horses in this country. This study included 522 apparently healthy, mixed-breed horses from three different counties. The serum samples were analysed using the cELISA Theileria equi Antibody Test Kit. The overall seroprevalence rate was 12.84%. From the total number of positive horses, 13.96% were females and 11.21% were males. Based on the distribution of positive cases into age groups, the following values were obtained: 0−60 months: 16.26%, 60−180 months: 10.03%, and >180 months: 15.83%. There was no statistically significant difference between samples, based on age or gender. The positivity percentage in the localities included in the study ranged from 8.33 to 100%. In the population under study, the seroprevalence rate was high, indicating a possible exposure risk in this area of Romania, which could have severe effects on equids in the case of clinical manifestations of the disease. EP represents a serious threat for equine health in Romania; therefore, close and continuous monitoring of the situation is required.
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Seroprevalence of Tick-Borne Infections in Horses from Northern Italy. Animals (Basel) 2022; 12:ani12080999. [PMID: 35454246 PMCID: PMC9028684 DOI: 10.3390/ani12080999] [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: 03/21/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Equine vector-borne diseases, which include equine granulocytic anaplasmosis (EGA) and equine piroplasmosis (EP), are caused by several pathogens transmitted to horses by ticks. Considering the spread of equine vector-borne diseases in Italy and worldwide, a study was planned to investigate the seroprevalence of Anaplasma phagocytophilum and the other two selected pathogens, Theileria equi and Babesia caballi, in northern Italy. Data obtained from the present study demonstrated a high seroprevalence for all the three surveyed tick-borne pathogens and emphasized the importance of establishing control programs with the adoption of certain practices, including tick control, correct horses management, serological screening, regular usage of long-lasting acaricides and proper treatment of positive and clinically infected animals. Abstract Tick-borne diseases in horses are considered an emergent problem worldwide; the geographical redistribution of ticks, due to climatic and ecological changes, and the movements of infected horses between different nations play important roles in the spread of tick-borne diseases affecting these hosts. In this study, a survey was planned to estimate the seroprevalence of the Gram-negative bacterium Anaplasma phagocytophilum and the piroplasmid protozoa Babesia caballi and Theileria equi in Italian horses, as well as to evaluate possible risk factors associated with seropositive cases. Serum samples from 261 horses reared in northern Italy were collected and analyzed by indirect immunofluorescence antibody test for the detection of A. phagocytophilum-, B. caballi- and T. equi-specific antibodies. The overall seroprevalence to at least one of the investigated pathogens was 51%; sixty-one horses were seropositive to A. phagocytophilum (23.4%), forty-nine to B. caballi and the same number to T. equi (18.8% each). Seropositivity for more than one of the investigated agents was detected in thirty-two horses and the most common co-infection was observed between B. caballi and T. equi (5.7%). A significant risk factor for all the three pathogens was the elevation above sea level; indeed, the risk of infection was higher with an increase and decrease in elevation for A. phagocytophilum and for B. caballi and T. equi, respectively. Tick control in horses is strongly recommended considering the high seroprevalence values of transmitted pathogens.
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Nadal C, Bonnet SI, Marsot M. Eco-epidemiology of equine piroplasmosis and its associated tick vectors in Europe: A systematic literature review and a meta-analysis of prevalence. Transbound Emerg Dis 2021; 69:2474-2498. [PMID: 34333863 DOI: 10.1111/tbed.14261] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 02/04/2021] [Accepted: 07/24/2021] [Indexed: 12/17/2022]
Abstract
When studying a vector-borne disease, an eco-epidemiological approach is vital for a comprehensive understanding of how the pathogen circulates amongst populations. Equine piroplasmosis (EP), a tick-borne disease caused by the protozoans Babesia caballi and Theileria equi, is endemic in the Mediterranean basin of Europe and causes both animal health and economic issues for the equine sector. With no vaccine available, defining the episystem of the disease can help to identify which components of the host-pathogen-vector-environment system to target to improve preventive measures. In this systematic literature review, we collected relevant data on the eco-epidemiology of EP in Europe. The 62 studies remaining after the selection procedure explored potential vectors, indicators of parasite circulation and putative risk factors of EP. Eight hard tick species were identified as potential vectors of one or both piroplasm species. Meta-analyses were then conducted on prevalence and seroprevalence data in equids in European countries, demonstrating an estimated seroprevalence of 30% and 8% and prevalence of 25% and 2% for T. equi and B. caballi, respectively. Finally, herd management practices and environmental risk factors analysed in studies showed no real consensus between studies, but revealed a general trend highlighting age and exposure to ticks as risk factors, and vaccination as a protective factor. Through this study, we point out that only a few studies have focused on disease management practices and even fewer have studied the effect of environmental parameters on equid infections. Further investigation in these areas is required to better characterize the eco-epidemiology of EP and risk factors associated with this disease.
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Affiliation(s)
- Clémence Nadal
- Epidemiology Unit, Laboratory for Animal Health, ANSES, University Paris Est, Maisons-Alfort, France.,ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, Laboratoire de Santé Animale, UMR BIPAR, Maisons-Alfort, France
| | - Sarah I Bonnet
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, Laboratoire de Santé Animale, UMR BIPAR, Maisons-Alfort, France
| | - Maud Marsot
- Epidemiology Unit, Laboratory for Animal Health, ANSES, University Paris Est, Maisons-Alfort, France
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Costa SCL, de Souza Freitas J, Carvalho FS, Pereira MJS, Cordeiro MD, da Fonseca AH, Gomes Jusi MM, Machado RZ, Munhoz AD. Frequency and factors associated of potential zoonotic pathogens (Borrelia spp., Rickettsia spp., Leishmania spp., and Anaplasma phagocytophilum) in equids in the state of Bahia, Brazil. Parasit Vectors 2021; 14:275. [PMID: 34022939 PMCID: PMC8140576 DOI: 10.1186/s13071-021-04777-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Currently, various zoonotic diseases are classified as emerging or reemerging. Because equids have a direct relationship with various vectors, they are possibly more frequently exposed to zoonotic agents than are humans. The undeniable importance of diseases such as human granulocytic anaplasmosis, spotted fever, and leishmaniasis for both public and animal health, as well as the possibility of equids acting as sources, reservoirs, or even sentinels for these pathogens, justifies the detection of their frequency and factors associated with infection in equids from northeastern Brazil. METHODS Blood samples were collected from 569 equids (528 horses, 33 donkeys, and 8 mules), 516 from a rural area and 53 from an urban area. Pathogen detection was carried out as follows: Borrelia spp. and Rickettsia spp., serological analysis; Leishmania spp., serological analysis and polymerase chain reaction (PCR); Anaplasma phagocytophilum, PCR. Determination of associated factors was carried out through generalized linear models. RESULTS The frequencies of positivity for the pathogens observed in equids were as follows: Borrelia spp., 13.9% (79/569); Leishmania spp., 3.5% (20/569); Rickettsia spp. 33.4% (190/569). Regarding factors associated with infection, male sex was associated with protection against Borrelia spp.; donkeys and mules were associated with protection against Rickettsia spp., while a younger age was a risk factor. The infection of A. phagocytophilum was not detected in the sampled population. Co-infection was detected in 5.1% (29/569) of the animals. CONCLUSIONS Most of the studied pathogenic agents are present in the prospected area, indicating a possible risk for both human and animal health. This demonstrates that equids can be considered important sentinels in the assessment of pathogens with zoonotic potential in the region.
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Affiliation(s)
- Sonia Carmen Lopo Costa
- Department of Agricultural and Environmental Sciences, State University of Santa Cruz - UESC, Soane Nazaré de Andrade Campus, Ilhéus, BA, Brazil
| | - Jéssica de Souza Freitas
- Department of Agricultural and Environmental Sciences, State University of Santa Cruz - UESC, Soane Nazaré de Andrade Campus, Ilhéus, BA, Brazil
| | - Fábio Santos Carvalho
- Department of Agricultural and Environmental Sciences, State University of Santa Cruz - UESC, Soane Nazaré de Andrade Campus, Ilhéus, BA, Brazil
| | - Maria Julia Salim Pereira
- Department of Animal Parasitology, Rural Federal University of Rio de Janeiro-UFRRJ, Seropédica, RJ, Brazil
| | - Matheus Dias Cordeiro
- Department of Epidemiology and Public Health, Rural Federal University of Rio de Janeiro-UFRRJ, Seropédica, RJ, Brazil
| | - Adivaldo Henrique da Fonseca
- Department of Epidemiology and Public Health, Rural Federal University of Rio de Janeiro-UFRRJ, Seropédica, RJ, Brazil
| | - Márcia Mariza Gomes Jusi
- Department of Animal Pathology, Julio Mesquita Filho State University, UNESP/Jaboticabal, Rod. Paulo Castelanne s/n, Jaboticabal, São Paulo, 4884-900, Brazil
| | - Rosangela Zacarias Machado
- Department of Animal Pathology, Julio Mesquita Filho State University, UNESP/Jaboticabal, Rod. Paulo Castelanne s/n, Jaboticabal, São Paulo, 4884-900, Brazil
| | - Alexandre Dias Munhoz
- Department of Agricultural and Environmental Sciences, State University of Santa Cruz - UESC, Soane Nazaré de Andrade Campus, Ilhéus, BA, Brazil.
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Tirosh-Levy S, Gottlieb Y, Fry LM, Knowles DP, Steinman A. Twenty Years of Equine Piroplasmosis Research: Global Distribution, Molecular Diagnosis, and Phylogeny. Pathogens 2020; 9:E926. [PMID: 33171698 PMCID: PMC7695325 DOI: 10.3390/pathogens9110926] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 12/26/2022] Open
Abstract
Equine piroplasmosis (EP), caused by the hemoparasites Theileria equi, Theileria haneyi, and Babesia caballi, is an important tick-borne disease of equines that is prevalent in most parts of the world. Infection may affect animal welfare and has economic impacts related to limitations in horse transport between endemic and non-endemic regions, reduced performance of sport horses and treatment costs. Here, we analyzed the epidemiological, serological, and molecular diagnostic data published in the last 20 years, and all DNA sequences submitted to GenBank database, to describe the current global prevalence of these parasites. We demonstrate that EP is endemic in most parts of the world, and that it is spreading into more temperate climates. We emphasize the importance of using DNA sequencing and genotyping to monitor the spread of parasites, and point to the necessity of further studies to improve genotypic characterization of newly recognized parasite species and strains, and their linkage to virulence.
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Affiliation(s)
- Sharon Tirosh-Levy
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
| | - Yuval Gottlieb
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
| | - Lindsay M. Fry
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164, USA; (L.M.F.); (D.P.K.)
- Animal Disease Research Unit, Agricultural Research Service, US Department of Agriculture, Pullman, WA 99164, USA
| | - Donald P. Knowles
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164, USA; (L.M.F.); (D.P.K.)
| | - Amir Steinman
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
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Fuehrer HP, Alho AM, Kayikci FN, Shahi Barogh B, Rosa H, Tomás J, Rocha H, Harl J, Madeira de Carvalho L. Survey of Zoonotic and Non-zoonotic Vector-Borne Pathogens in Military Horses in Lisbon, Portugal. Front Vet Sci 2020; 7:591943. [PMID: 33195629 PMCID: PMC7593411 DOI: 10.3389/fvets.2020.591943] [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: 08/05/2020] [Accepted: 09/04/2020] [Indexed: 11/13/2022] Open
Abstract
Vector-borne diseases of zoonotic and/or veterinary relevance have been increasingly reported in horses globally, although data regarding working and military horses is lacking. Portuguese military horses may constitute a risk group for these pathogens, as they frequently work outdoors in various regions of the country. This study included 101 apparently healthy horses belonging to the Portuguese National Republican Guard. Blood samples were analyzed to determine the presence and prevalence of piroplasms, Anaplasmataceae, Rickettsia spp., and filarioid helminths. Overall 32.7% of the horses gave positive results for Theileria equi. Two genotypes of T. equi were verified. No positive results were recorded for Anaplasma spp., Rickettsia spp., filarioid helminthes, and Babesia caballi. As equine piroplasmosis is a severe infectious tick-borne disease responsible for significant losses in equine production and with numerous impacts in the international movement of horses, adequate treatment, and preventive measures are needed to reduce exposure to vectors and future infections.
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Affiliation(s)
- Hans-Peter Fuehrer
- Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine, Vienna, Austria
| | - Ana Margarida Alho
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisbon, Lisbon, Portugal
| | - Feodora Natalie Kayikci
- Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine, Vienna, Austria
| | - Bita Shahi Barogh
- Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine, Vienna, Austria
| | - Hugo Rosa
- Guarda Nacional Republicana, Lisbon, Portugal
| | - José Tomás
- Guarda Nacional Republicana, Lisbon, Portugal
| | - Hugo Rocha
- Guarda Nacional Republicana, Lisbon, Portugal
| | - Josef Harl
- Department of Pathobiology, Institute of Pathology, University of Veterinary Medicine, Vienna, Austria
| | - Luís Madeira de Carvalho
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisbon, Lisbon, Portugal
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Camino E, Buendia A, Dorrego A, Pozo P, de Juan L, Dominguez L, Cruz-Lopez F. Sero-molecular survey and risk factors of equine piroplasmosis in horses in Spain. Equine Vet J 2020; 53:771-779. [PMID: 32918303 DOI: 10.1111/evj.13348] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Theileria equi and Babesia caballi cause equine piroplasmosis (EP), one of the most important tick-borne diseases of horses due to its high negative impact to the equine industry. Although infections with these parasites have been reported for decades in Spain, epidemiological studies have only been carried out in certain regions. OBJECTIVES To determine the (sero)prevalence of these parasites in asymptomatic horses nationwide in Spain and to identify potential individual and environmental factors associated with seropositivity to EP. STUDY DESIGN Sample size was calculated according to the horses registered in Spain in 2013 and by autonomous community using a random stratified sampling. A questionnaire was used to collect data on factors associated with EP seropositivity. METHODS Serological (cELISA and complement fixation test) and molecular (real-time PCR) analyses were carried out in 740 horses. Risk factors were identified computing two independent logistic regression models with the collated data. RESULTS Antibodies against EP were detected in 42.9% (95% CI 39.4-46.5) of horses, whereas 30.3% (95% CI 27.0-33.6) were EP positive by PCR. A substantial strength of agreement (k = 0.721) was estimated between serological tests. Exposure to T. equi was significantly higher than to B. caballi and the highest (sero)prevalence was detected in the northern communities. Increasing horse age, presence of ticks and contact with cows were factors related to EP seropositivity in the horses, whereas tetanus vaccination and fairs attendance were associated with lower seropositivity. CONCLUSIONS Almost half of the horses residing in Spain had antibodies against EP or circulating parasitaemia. Appropriate prevention measures and implementation of a EP surveillance programme should be considered in order to reduce and control the infection.
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Affiliation(s)
- Eliazar Camino
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain.,Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
| | - Aranzazu Buendia
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain
| | - Abel Dorrego
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain
| | - Pilar Pozo
- MAEVA SERVET, S.L, Alameda del Valle, Spain
| | - Lucía de Juan
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain.,Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
| | - Lucas Dominguez
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain.,Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
| | - Fatima Cruz-Lopez
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain
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Camino E, Cruz-Lopez F, de Juan L, Dominguez L, Shiels B, Coultous RM. Phylogenetic analysis and geographical distribution of Theileria equi and Babesia caballi sequences from horses residing in Spain. Ticks Tick Borne Dis 2020; 11:101521. [PMID: 32993941 DOI: 10.1016/j.ttbdis.2020.101521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/13/2020] [Accepted: 07/23/2020] [Indexed: 12/17/2022]
Abstract
The intraerythrocytic protozoans Theileria equi and Babesia caballi are the causative agents of equine piroplasmosis (EP), one of the most important equine tick-borne diseases due to its significant impact on global international horse trade. Although EP is known to be endemic in Spain, previous phylogenetic studies have only been conducted for limited geographical regions. Therefore, the objective of this study was to evaluate the genetic diversity and distribution of these parasite species nationwide. This was performed by amplification of the 18S small subunit (SSU) rRNA gene from 100 EP positive equine blood samples using a nested PCR protocol, and sequencing the obtained amplicons. Seventy-seven T. equi and six B. caballi isolates were successfully sequenced and phylogenetic analysis revealed that the T. equi isolates grouped into the previously described clades A (n = 21/77), D (n = 1/77) and E (n = 55/77), while B. caballi isolates were placed into clades A (n = 5/6) and B (n = 1/6). Isolates from T. equi clade D and B. caballi clade B have not previously been reported in Spain. A greater intra-clade diversity (97.3-98.3 % identity) was observed between T. equi clade E isolates compared to those within clade A (99.7-100 % identity). Additionally, a multivariable logistic regression model was used to analyse associations between the clade of T. equi infection and available epidemiological data. Horses residing in Spanish northern regions were statistically more likely to be infected with T. equi clade E (p = 0.01). We conclude that while extensive sequence variation of equine piroplasms exists in Spanish infected horses, a requirement for increased equine movement controls between Spain and EP-endemic countries should be considered.
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Affiliation(s)
- Eliazar Camino
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain; Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain.
| | - Fatima Cruz-Lopez
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain
| | - Lucia de Juan
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain; Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
| | - Lucas Dominguez
- VISAVET Health Surveillance Centre, Universidad Complutense, Madrid, Spain; Animal Health Department, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
| | - Brian Shiels
- Institute of Biodiversity Animal Health and Comparative Medicine. College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
| | - Robert M Coultous
- Institute of Biodiversity Animal Health and Comparative Medicine. College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
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Lei R, Wang X, Zhang D, Liu Y, Chen Q, Jiang N. Rapid isothermal duplex real-time recombinase polymerase amplification (RPA) assay for the diagnosis of equine piroplasmosis. Sci Rep 2020; 10:4096. [PMID: 32139744 PMCID: PMC7058082 DOI: 10.1038/s41598-020-60997-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/19/2020] [Indexed: 12/21/2022] Open
Abstract
Equine piroplasmosis (EP) is a severe disease of horses caused by the tick-borne protozoa Theileria equi (T. equi) and Babesia caballi (B. caballi). Infectious carriers are not always symptomatic, meaning there is a risk to non-enzootic areas. Regulatory tests for EP include sero-epidemiological methods for equine babesiosis, but these lack specificity due to cross-reactivity with other Babesia species. In this study, we present a real-time quantitative recombinase polymerase amplification (qRPA) method for fast simultaneous detection of both T. equi and B. caballi. In this method, primers and probes targeting the 18S rRNA gene of both T. equi and B. caballi, the ema-1 gene of T. equi and the bc48 gene of B. caballi were designed and evaluated. The sensitivity of qRPA was evaluated using the pUC57 plasmid DNA containing the target gene. For the pUC57-bc48 gene DNA, the R2 value was 0.983 for the concentration range 0.2 ng (4.1 × 107 DNA copies) to 2.0 fg (4.1 × 101 DNA copies). For the pUC57-ema gene DNA, the R2 value was 0.993 for the concentration range 0.2 ng (5.26 × 107 DNA copies) to 2.0 fg (5.26 × 102 DNA copies). For the pUC57-Bc18S gene DNA the R2 value was 0.976 for the concentration range 2.0 ng (4.21 × 108 DNA copies) to 2.0 fg (4.21 × 102 DNA copies). For the pUC57-Te18S gene DNA, the R2 value was 0.952 (Fig. S3b) for the concentration range 2.0 ng (4.16 × 108 DNA copies) to 2.0 fg (4.16 × 102 DNA copies). Furthermore, a duplex qRPA analysis was developed and optimized and the results showed that primers and probes targeting for the bc48 gene of B. caballi and the 18S rRNA gene of T. equi is the best combination for a duplex qRPA analysis in one reaction. The developed duplex qRPA assay has good specificity, and had negative amplification for several similar parasite. For DNA extracted from real horse blood specimens, this qRPA method has comparable sensitivity to traditional qPCR, but a simpler and more rapid operating process to obtain positive amplification. The qRPA, including the duplex strategy described here, could allow fast identification of the EP-causing T. equi and B. caballi, showing great potential for on-site EP screening of horses.
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Affiliation(s)
- Rong Lei
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Xinyi Wang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Key Laboratory of Zoonosis, Shenyang Agricultural University, Shenyang, 110866, China.,College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China
| | - Di Zhang
- College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yize Liu
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Key Laboratory of Zoonosis, Shenyang Agricultural University, Shenyang, 110866, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang, 110866, China
| | - Qijun Chen
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Key Laboratory of Zoonosis, Shenyang Agricultural University, Shenyang, 110866, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang, 110866, China
| | - Ning Jiang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Key Laboratory of Zoonosis, Shenyang Agricultural University, Shenyang, 110866, China. .,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang, 110866, China.
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12
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Li J, Li Y, Moumouni PFA, Lee SH, Galon EM, Tumwebaze MA, Yang H, Liu M, Guo H, Gao Y, Benedicto B, Zhang W, Fan X, Chahan B, Xuan X. First description of Coxiella burnetii and Rickettsia spp. infection and molecular detection of piroplasma co-infecting horses in Xinjiang Uygur Autonomous Region, China. Parasitol Int 2019; 76:102028. [PMID: 31759172 DOI: 10.1016/j.parint.2019.102028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/19/2019] [Indexed: 11/20/2022]
Abstract
Q fever, spotted fever rickettsioses and equine piroplasmosis, are some of the most serious equine tick-borne diseases caused by Coxiella burnetii, Rickettsia spp., Babesia caballi and/or Theileria equi. This study surveyed and molecularly characterized these pathogens infecting horses in ten ranches from XUAR, China using molecular technology. Among 200 horse blood samples, 163 (81.5%) were infected with at least one of the pathogens. Rickettsia spp. was the most prevalent pathogen (n = 114, 57.0%), followed by C. burnetii (n = 79, 39.5%), T. equi (n = 79, 39.5%) and B. caballi (n = 49, 24.5%). Co-infections were observed in 61.3% of positive samples in this study. Statistically significant differences were observed between the sampling regions for C. burnetii, B. caballi and T. equi, and also in different age group for C. burnetii and T. equi. The genotype analysis indicated that C. burnetii htpB, Rickettsia spp. ompA, B. caballi rap-1, B. caballi 18S rRNA, T. equi EMA-1 and T. equi 18S rRNA gene sequences from horses in XUAR were variable. To the best of our knowledge, this study is the first report of C. burnetii and Rickettsia spp. infection and co-infected with piroplasma in horses in China. Overall, this study revealed the high infection rate of the pathogens in horses in XUAR, China. The current findings are expected to provide a basis for better tick-borne disease control in the region.
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Affiliation(s)
- Jixu Li
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Yongchang Li
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Paul Franck Adjou Moumouni
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Seung-Hun Lee
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Eloiza May Galon
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Maria Agnes Tumwebaze
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Hongxia Yang
- Parasitology Laboratory, Veterinary College, Xinjiang Agricultural University, Uygur, Xuar 830052, China
| | - Mingming Liu
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Huanping Guo
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Yang Gao
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Byamukama Benedicto
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Wei Zhang
- Parasitology Laboratory, Veterinary College, Xinjiang Agricultural University, Uygur, Xuar 830052, China
| | - Xinli Fan
- Parasitology Laboratory, Veterinary College, Xinjiang Agricultural University, Uygur, Xuar 830052, China
| | - Bayin Chahan
- Parasitology Laboratory, Veterinary College, Xinjiang Agricultural University, Uygur, Xuar 830052, China.
| | - Xuenan Xuan
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
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Great diversity of Piroplasmida in Equidae in Africa and Europe, including potential new species. VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS 2019; 18:100332. [PMID: 31796173 DOI: 10.1016/j.vprsr.2019.100332] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 05/27/2019] [Accepted: 08/19/2019] [Indexed: 11/23/2022]
Abstract
Piroplasms are Apicomplexa tick-borne parasites distributed worldwide. They are responsible for piroplasmosis (theileriosis and babesiosis) in Vertebrata and are therefore of medical and economic importance. Herein, we developed a new real time PCR assay targeting the 5.8S rRNA gene and three standard PCR assays, targeting 18S rRNA, 28S rRNA, and cox1 genes, for the detection of piroplasmids. These assays were first optimized and screened for specificity and sensitivity. Then, they were used to study a total of 548 blood samples and 97 ticks collected from Equidae in four sub-Saharan countries (Senegal, Democratic Republic of the Congo, Chad, and Djibouti) and France (Marseille and Corsica). DNA of piroplasms was detected in 162 of 548 (29.5%) blood samples and in 9 of 97 (9.3%) ticks. The highest prevalence in blood samples was observed in Chad in 2016 with 72.9% positivity rate. Sequencing allowed the identification of four species of piroplasms, including two potentials new species. Theileria equi was mainly found. The highest prevalence was observed in Senegal (14 positive out of 23, 60.87%). Babesia caballi was detected in one horse in Senegal. Two new potential Theileria species were detected: Theileria sp. "Africa", observed in all areas excepted in Marseille and Theileria sp. "Europa", observed in Marseille and Corsica. In conclusion, sensitive and specific PCR assays were developed for epidemiological studies of Piroplasmida. The circulation of multiple species of piroplasms, including two potentials new species, observed among Equidae from sub-Saharan Africa and France.
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Serological Evidence of Anaplasma phagocytophilum and Spotted Fever Group Rickettsia spp. Exposure in Horses from Central Italy. Pathogens 2019; 8:pathogens8030088. [PMID: 31247976 PMCID: PMC6789761 DOI: 10.3390/pathogens8030088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 11/16/2022] Open
Abstract
Anaplasma phagocytophilum and Rickettsia spp. are tick-borne bacteria of veterinary and human concern. In view of the One-Health concept, the present study wanted to evaluate the spreading of these pathogens in horses living in central Italy. In particular, the aim of the investigation was to verify the exposure to A. phagocytophilum in order to update the prevalence of this pathogen in the equine population from this area, and to spotted fever group (SFG) Rickettsia spp. to evaluate a possible role of horses in the epidemiology of rickettsiosis. Indirect immunofluorescent assay was carried out to detect antibodies against A. phagocytophilum and SFG (spotted fever group) Rickettsia spp. in blood serum samples collected from 479 grazing horses living in central Italy during the period from 2013 to 2018. One hundred and nine (22.75%) horses were positive for A. phagocytophilum, 72 (15.03%) for SFG Rickettsia spp., and 19 (3.96%) for both antigens. The obtained results confirm the occurrence of A. phagocytophilum in equine populations, and also suggest the involvement of horses in the epidemiology of SFG rickettsiosis. In both cases, in view of the zoonotic aspect of these pathogens and the frequent contact between horses and humans, the monitoring of equine populations could be useful for indication about the spreading of the tick-borne pathogens in a certain geographic area.
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Dos Santos TM, Roier ECR, Pires MS, Santos HA, Vilela JAR, Peckle M, Paulino PG, Baldani CD, Massard CL. Molecular evidence of Anaplasma phagocytophilum and Theileria equi coinfection in horses from Rio de Janeiro, Brazil. Vet Anim Sci 2019; 7:100055. [PMID: 32734076 PMCID: PMC7386651 DOI: 10.1016/j.vas.2019.100055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 11/25/2022] Open
Abstract
Molecular evidence of coinfection with A. phagocytophilum and T. equi in horses in Brazil was confirmed for the first time by the detection of DNA from both agents. EGA should be included in differential diagnosis of tick-borne diseases in horses. Different clinical manifestations in horses may be due to coinfection.
The present study aims to determine the frequencies of Theileria equi and Anaplasma phagocytophilum antibodies among horses from the state of Rio de Janeiro, Brazil, and to detect the presence of DNA of these pathogens through molecular methods. A total of 98 serum samples of horses from the municipality of Seropedica were tested by indirect immunofluorescence antibody (IFA) to detect anti-A. phagocytophilum and anti-T. equi IgG antibodies. In addition, quantitative real-time PCR (qPCR) was used to detect these pathogens in the DNA extracted from the whole blood and buffy coat of horses. Bivariate analysis and odds ratio were performed to verify the possible association between positivity and characteristics related to the horses. As evaluated by IFA and qPCR, the frequency of animals that tested positive for T. equi was 89.8% (n = 88/98) and 91.8% (n = 90/98), whereas A. phagocytophilum was 17.4% (n = 17/98) and 1.0% (n = 1/98), respectively. Serological evidence of exposure to A. phagocytophilum and T. equi was observed in 16.3% (n = 16/98) of the horses; however, exposure was confirmed by qPCR in only 1.0% (n = 1/98). No statistical association was found in the bivariate and odds ratio analysis. This is the first study reporting the molecular detection of A. phagocytophilum DNA in horses from the state of Rio de Janeiro, and also the coinfection of A. phagocytophilum and T. equi in a horse from Brazil confirmed by molecular methods. Equine granulocytic anaplasmosis is circulating in Brazilian horses, together with T. equi, and should be included in the differential diagnosis of tick-borne diseases.
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Affiliation(s)
- Tiago Marques Dos Santos
- Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
| | | | - Marcus Sandes Pires
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
| | - Huarrisson Azevedo Santos
- Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
| | - Joice Aparecida Rezende Vilela
- Company of Technical Assistance and Extension Rural (EMATER) Estrada RJ 99, km 8 - Piranema, Itaguaí, Rio de Janeiro 23855-120, Brazil
| | - Maristela Peckle
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
| | - Patrícia Gonzaga Paulino
- Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
| | - Cristiane Divan Baldani
- Department of Medicine and Veterinary Surgery, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropédica, Rio de Janeiro 23890000, Brazil
| | - Carlos Luiz Massard
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro 23897-000, Brazil
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Costa SCL, Freitas JDS, Silva AND, Lacerda LC, Cruz RDS, Carvalho FS, Pereira MJS, Munhoz AD. Frequency and factors associated with Theileria equi, Babesia caballi and Trypanosoma evansi in equids from Bahia (Northeast Brazil). ACTA ACUST UNITED AC 2019; 28:47-58. [PMID: 30785553 DOI: 10.1590/s1984-296120180090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/22/2018] [Indexed: 11/22/2022]
Abstract
The aim of this study was to determine the frequency and factors associated to Babesia caballi, Theileria equi and Trypanosoma evansi in naturally infected equids from the northeast Brazil. Blood samples from 569 equids (528 horses, 8 mules, and 33 donkeys) were collected and tested for the presence of DNA of each of these protozoan parasites by PCR. Generalized linear models were used to evaluate risk factors associated with the infection. The frequency of T. equi infection was 83.5% (475/569) - 84.3% in horses, and 73.2% in donkeys and mules. The results of the final model indicated that age (senior group) and animal species (mule and donkey group) were protective factors against this pathogen. The frequency of B. caballi infection was 24.3% (138/569) - 23.5% in horses and 34.1% in donkeys and mules. Age (adult and senior group) was considered a protective factor against B. caballi infection whereas animal species (donkey and mule group) were considered a risk factor for the infection. Trypanosoma evansi infection was not detected in any of animals. Our results suggest that equids from the area studied may be infected earlier in life with the etiological agents of equine piroplasmosis and become asymptomatic carriers.
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Affiliation(s)
- Sonia Carmen Lopo Costa
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Jéssica de Souza Freitas
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Aísla Nascimento da Silva
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Luciana Carvalho Lacerda
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Rebeca Dálety Santos Cruz
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Fábio Santos Carvalho
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
| | - Maria Julia Salim Pereira
- Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro - UFRRJ, Seropédica, RJ, Brasil
| | - Alexandre Dias Munhoz
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Soane Nazaré de Andrade, Ilhéus, BA, Brasil
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Montes Cortés MG, Fernández-García JL, Habela Martínez-Estéllez MÁ. A multinested PCR for detection of the equine piroplasmids Babesia caballi and Theileria equi. Ticks Tick Borne Dis 2018; 10:305-313. [PMID: 30472099 DOI: 10.1016/j.ttbdis.2018.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 10/24/2018] [Accepted: 11/10/2018] [Indexed: 10/27/2022]
Abstract
Two haemoparasites, Theileria equi and Babesia caballi, cause equine piroplasmosis (EP), one of the most prevalent tick-borne diseases in horses. The main aim of the present study was to develop and evaluate a multinested PCR (mn-PCR) for simultaneous detection of the equine piroplasmids T. equi and B. caballi, by amplification of five genetic markers (18S rRNA, β-tubulin, cytB, EMA-1 and RAP-1). This novel assay detected a high prevalence of equine piroplasmids in 235 horse blood samples collected in Castilla-León and Extremadura, Spain. The overall prevalence of infection with equine piroplasmids by mn-PCR was 72.8% (171/235), with 66.0% (155/235) of the animals positive for T. equi and 29.4% (69/235) positive for B. caballi. The seroprevalence obtained by cELISA for the same set of samples was lower than the infection prevalence recorded by mn-PCR, for either of the two equine piroplasmids (62.6%) as well as for T. equi alone (61.7%) or B. caballi alone (3.8%). There was high agreement among the mn-PCR and cELISA assays for diagnosis of EP caused by T. equi (κ = 0.83) but not for B. caballi (κ = 0.06). A phylogenetic analysis based on the RAP-1 gene of B. caballi showed that the strains from Spain clustered with those from Israel.
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Affiliation(s)
- M G Montes Cortés
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, Extremadura University, 10071, Cáceres, Spain
| | - J L Fernández-García
- Genetics and Animal Breeding, Veterinary Faculty, Extremadura University, 10071, Cáceres, Spain.
| | - M Á Habela Martínez-Estéllez
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, Extremadura University, 10071, Cáceres, Spain
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Camino E, de la Cruz ML, Dominguez L, Carvajal KA, Fores P, de Juan L, Cruz-Lopez F. Epidemiological Situation of the Exposure to Agents Causing Equine Piroplasmosis in Spanish Purebred Horses in Spain: Seroprevalence and Associated Risk Factors. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Pereira A, Parreira R, Cotão AJ, Nunes M, Vieira ML, Azevedo F, Campino L, Maia C. Tick-borne bacteria and protozoa detected in ticks collected from domestic animals and wildlife in central and southern Portugal. Ticks Tick Borne Dis 2017; 9:225-234. [PMID: 28958791 DOI: 10.1016/j.ttbdis.2017.09.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 09/15/2017] [Accepted: 09/15/2017] [Indexed: 12/18/2022]
Abstract
Ticks are vectors of many human and animal pathogens. The aim of this study was to screen bacteria and protozoa from ticks infesting domestic animals and wildlife collected in central and southern Portugal. A total of 593 ticks, comprising 465 (78.4%) adults, 122 (20.6%) nymphs, and six (1.0%) larvae, were collected from 283 hosts of 25 different species (4 domestic and 21 wild). Overall, the analysis of DNA extracts prepared from ticks collected from hosts of 11 different species in the districts of Castelo Branco, Portalegre, Lisboa, Setúbal, Beja and Faro, revealed the presence of genomic sequences from Anaplasma sp., A. ovis, Babesia sp., relapsing fever-like Borrelia sp., Ehrlichia spp., Rickettsia aeschlimannii, Ri. helvetica, Ri. massiliae, Ri. raoultii, Ri. slovaca, Candidatus Ri. barbariae, Theileria annulata and T. ovis, in specimens of Dermacentor marginatus, Hyalomma lusitanicum, Hy. marginatum, Rhipicephalus bursa and Rh. sanguineus sensu lato. The obtained results suggest the circulation of a wide variety of infectious agents, some of zoonotic concern, in hard ticks from Portugal. Further studies should be conducted to better characterize (both genetically and phenotypically) the putative novel microorganisms detected, both in what regards their potential pathogenity towards vertebrates, and to assist the implementation of effective control strategies for the management of ticks and human and animal tick-borne pathogens.
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Affiliation(s)
- André Pereira
- Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal; Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Parasitology Unit, IHMT, UNL, Portugal
| | - Ricardo Parreira
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Microbiology Unit, IHMT, UNL, Portugal
| | | | - Mónica Nunes
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Microbiology Unit, IHMT, UNL, Portugal
| | - Maria Luísa Vieira
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Microbiology Unit, IHMT, UNL, Portugal
| | | | - Lenea Campino
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Parasitology Unit, IHMT, UNL, Portugal
| | - Carla Maia
- Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal; Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal; Medical Parasitology Unit, IHMT, UNL, Portugal.
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Montes Cortés MG, Fernández-García JL, Habela Martínez-Estéllez MÁ. Seroprevalence of Theileria equi and Babesia caballi in horses in Spain. ACTA ACUST UNITED AC 2017; 24:14. [PMID: 28497743 PMCID: PMC5432961 DOI: 10.1051/parasite/2017015] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 04/17/2017] [Indexed: 11/14/2022]
Abstract
Equine piroplasmoses are enzootic parasitic diseases distributed worldwide with high incidence in tropical and subtropical regions. In Spain, there is insufficient epidemiological data about equine piroplasmoses. The main aim of the present study was therefore to estimate the prevalence of Theileria equi and Babesia caballi in five regions and obtain information about the risk factors. This study was conducted in the central and south-western regions of Spain, using indirect fluorescence antibody testing (IFAT) in 3,100 sera samples from apparently healthy horses of different ages, breeds, coat colours, genders and geographical locations. The overall seroprevalence was 52%, consisting of 44% seropositive for T. equi and 21% for B. caballi. There was a significant association between age (p < 0.0001), breed (p < 0.004), geographical location (p < 0.0001) and the seroprevalence, but neither the coat colour nor the gender was significantly associated with prevalence. In addition, it was proved that most of the geographic areas showed a moderate to high prevalence. The statistical κ value was used to compare the results obtained by the IFAT and the competitive enzyme-linked immunosorbent assay (cELISA) utilised to test some samples (n = 108) and showed a higher concordance for T. equi (κ = 0.68) than for B. caballi (κ = 0.22). Consequently, this revealed the importance of developing an appropriate technique to detect each haemoparasite.
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Affiliation(s)
- Maria Guadalupe Montes Cortés
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, University of Extremadura, 10071 Cáceres, Spain
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Ayala-Valdovinos MA, Lemus-Flores C, Galindo-García J, Bañuelos-Pineda J, Rodríguez-Carpena JG, Sánchez-Chiprés D, Duifhuis-Rivera T. Diagnosis and prevalence of Theileria equi horses in western Mexico by nested PCR. Parasitol Int 2017; 66:821-824. [DOI: 10.1016/j.parint.2016.09.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/22/2016] [Indexed: 11/24/2022]
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22
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Prevalence and risk factors of Theileria equi infection in horses in Minas Gerais, Brazil. Vet Parasitol Reg Stud Reports 2016; 3-4:18-22. [DOI: 10.1016/j.vprsr.2016.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/11/2016] [Accepted: 05/16/2016] [Indexed: 11/16/2022]
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23
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Detection and phylogenetic characterization of Theileria spp. and Anaplasma marginale in Rhipicephalus bursa in Portugal. Ticks Tick Borne Dis 2016; 7:443-8. [DOI: 10.1016/j.ttbdis.2016.01.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 12/09/2015] [Accepted: 01/10/2016] [Indexed: 11/21/2022]
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24
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Guidi E, Pradier S, Lebert I, Leblond A. Piroplasmosis in an endemic area: analysis of the risk factors and their implications in the control of Theileriosis and Babesiosis in horses. Parasitol Res 2014; 114:71-83. [DOI: 10.1007/s00436-014-4161-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/23/2014] [Indexed: 10/24/2022]
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25
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Seroprevalence and risk factors associated with Babesia caballi and Theileria equi infections in donkeys from Southern Italy. Vet J 2014; 202:578-82. [PMID: 25457263 DOI: 10.1016/j.tvjl.2014.09.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 09/23/2014] [Accepted: 09/25/2014] [Indexed: 11/20/2022]
Abstract
Equine piroplasmosis (EP) has been frequently described in donkeys in subtropical and tropical regions, but published data reflecting large scale surveys are very limited in Europe. The seroprevalence of Babesia caballi and Theileria equi was determined in a donkey population from Campania Region in Southern Italy using a commercial indirect fluorescent antibody test (IFAT), and the risk factors associated with the occurrence of the infection were assessed. Of 203 samples, the overall seroprevalence for EP was 57.1% (116/203), with 35.5% (72/203) for B. caballi and 44.3% (90/203) for T. equi. Co-infection was detected in 46 donkeys (22.6%). The distribution of IFAT antibody titres to B. caballi was: 1:80 (n= 67), 1:160 (n= 2), 1:320 (n= 3); while the distribution of IFAT antibody titres to T. equi was: 1:80 (n= 25), 1:160 (n= 42), 1:320 (n= 12), 1:640 (n= 8), 1:1280 (n= 3). All examined donkeys were asymptomatic, except one adult male (with a titre of 1:640 against T. equi) that showed clinical signs corresponding to the acute stage of EP, reported for the first time in Italy. The unique risk factor associated with a higher B. caballi seroprevalence was the presence of horses in the farms, while risk factors associated with a higher T. equi seroprevalence were poor body condition, presence of ruminants in the farms and milk production. The results indicate a high level of exposure in donkeys living in Southern Italy and suggest that donkeys may be an important reservoir of EP.
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26
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Veronesi F, Passamonti F, Moretti A, Morganti G, Vardi DM, Laus F, Marenzoni ML, Spaterna A, Coletti M, Piergili Fioretti D. Evaluation of the Performance of a Rapid Enzyme-Linked Immunosorbent Assay in the Detection ofAnaplasma phagocytophilumAntibodies in Horses. Vector Borne Zoonotic Dis 2014; 14:317-23. [DOI: 10.1089/vbz.2013.1424] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Fabrizia Veronesi
- Department of Bio-Pathological Sciences and Hygiene of Animal and Food Production, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Fabrizio Passamonti
- Department of Veterinary Pathology, Diagnostic and Clinics, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Annabella Moretti
- Department of Bio-Pathological Sciences and Hygiene of Animal and Food Production, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Giulia Morganti
- Department of Bio-Pathological Sciences and Hygiene of Animal and Food Production, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Doron Moshe Vardi
- Department of Veterinary Pathology, Diagnostic and Clinics, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Fulvio Laus
- School of Veterinary Medical Sciences, University of Camerino, Camerino, Italy
| | - Maria Luisa Marenzoni
- Department of Veterinary Pathology, Diagnostic and Clinics, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Andrea Spaterna
- School of Veterinary Medical Sciences, University of Camerino, Camerino, Italy
| | - Mauro Coletti
- Department of Veterinary Pathology, Diagnostic and Clinics, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Daniela Piergili Fioretti
- Department of Bio-Pathological Sciences and Hygiene of Animal and Food Production, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
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