Molecular detection of Rickettsia spp., Anaplasma platys and Theileria equi in ticks collected from horses in Tayrona National Park, Colombia.
Abstract: Horses are among the domestic animals that closely interact with humans and are highly parasitized by ticks, which are the primary vectors of zoonoses. As horses in Tayrona National Natural Park (PNNT) are used as a means of transporting goods, luggage and people, they are in constant contact with wild animals, workers and tourists from different countries. These factors increase the transmission risk of hemoparasites. The purpose of this study was to determine the presence of Rickettsia sp., Anaplasma sp., and Theileria sp., in horse ticks in this protected area using conventional PCR. We collected 343 ticks of genera Amblyomma, Rhipicephalus and Dermacentor. Of the 61 samples analyzed by PCR, 18 (29.5%) individuals were positive for Rickettsia sp., 15 (24.5%) for Anaplasma sp. and 4 (6.6%) for Theileria sp. This is the first report of these hemoparasite genera in ticks associated with horses in this preserved natural area, demonstrating the importance of additional studies on the presence and epidemiology of hemoparasites and their vectors in domestic and wild animals in conserved areas with a high flow of tourists.
Publication Date: 2019-03-28 PubMed ID: 30923988DOI: 10.1007/s10493-019-00354-8Google Scholar: Lookup
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- Journal Article
Summary
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The researchers found three kinds of disease-causing organisms (Rickettsia, Anaplasma, and Theileria) in ticks collected from horses in Tayrona National Park, Colombia. This study suggests the potential for disease transmission to both humans and animals in areas with high levels of tourism and calls for further investigation.
Study Objectives and Method
- The primary objective of this study was to investigate the presence of three types of hemoparasites (Rickettsia, Anaplasma, and Theileria) in ticks collected from horses in Tayrona National Park, a popular tourist destination in Colombia.
- The researchers chose this location because of the high level of interaction between horses, wild animals, and people from various countries, which may increase the risk of parasite transmission.
- To identify these parasites, the researchers used a conventional Polymerase Chain Reaction (PCR) testing method.
- A total of 343 ticks were collected from the horses, belonging to the genera Amblyomma, Rhipicephalus, and Dermacentor.
Study Findings and Implications
- Out of the 61 tick samples tested, the researchers found that 29.5% were positive for Rickettsia, 24.5% for Anaplasma, and 6.6% for Theileria.
- This is the first time these types of hemoparasites have been reported in ticks found on horses in Tayrona National Park.
- The findings demonstrate a potential risk for these parasites to spread to humans and other animals, because of the close interactions horses have with people and other wildlife in this area.
- As a crucial note, these organisms are known to cause disease in humans, and ticks are their primary vectors. Therefore, the presence of these organisms in ticks found on horses suggests a potentially significant public health risk.
Recommendations for Future Research
- The researchers recommend additional studies to better understand the presence and transmission of these parasites in both domestic and wild animals in areas like Tayrona National Park, which has high tourism traffic.
- They also suggest investigating the epidemiology of these hemoparasites as well as understanding the roles of vectors in disease transmission.
Cite This Article
APA
Santodomingo A, Sierra-Orozco K, Cotes-Perdomo A, Castro LR.
(2019).
Molecular detection of Rickettsia spp., Anaplasma platys and Theileria equi in ticks collected from horses in Tayrona National Park, Colombia.
Exp Appl Acarol, 77(3), 411-423.
https://doi.org/10.1007/s10493-019-00354-8 Publication
Researcher Affiliations
- Grupo de Investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Cl. 32 #22-08, Santa Marta, Magdalena, Colombia. adrianasantodomingo@gmail.com.
- Grupo de Investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Cl. 32 #22-08, Santa Marta, Magdalena, Colombia.
- Grupo de Investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Cl. 32 #22-08, Santa Marta, Magdalena, Colombia.
- Grupo de Investigación Evolución, Sistemática y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Cl. 32 #22-08, Santa Marta, Magdalena, Colombia.
MeSH Terms
- Anaplasma / classification
- Anaplasma / isolation & purification
- Animals
- Colombia
- Dermacentor / microbiology
- Female
- Horses / parasitology
- Ixodidae / microbiology
- Larva / microbiology
- Male
- Nymph / microbiology
- Parks, Recreational
- Polymerase Chain Reaction / veterinary
- Rhipicephalus / microbiology
- Rickettsia / classification
- Rickettsia / isolation & purification
- Theileria / classification
- Theileria / isolation & purification
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Citations
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