AUTHOR=Rojero-Vázquez Edgar , Gordillo-Pérez Guadalupe , Weber Manuel 

TITLE=Infection of Anaplasma phagocytophilum and Ehrlichia spp. in Opossums and Dogs in Campeche, Mexico: The Role of Tick Infestation

JOURNAL=Frontiers in Ecology and Evolution

VOLUME=5

YEAR=2017

URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2017.00161

DOI=10.3389/fevo.2017.00161

ISSN=2296-701X

ABSTRACT=<p>In recent years, some tick-borne diseases such as anaplasmosis and ehrlichiosis became widespread worldwide, threatening the health of humans, domestic animals and wildlife. The aims of this study were to determine the presence of <italic>Anaplasma phagocytophilum, Ehrlichia canis</italic>, and <italic>Ehrlichia chaffeensis</italic> in 102 opossums (<italic>Didelphis</italic> spp.) and 44 owned free-ranging dogs in southeastern Mexico using a specific polymerase chain reaction (PCR). <italic>A. phagocytophilum</italic> was detected in opossums and dogs with a prevalence of 3 and 27%, respectively. <italic>E. canis</italic> was only present in 7% of dogs, while we didn't detect <italic>E. chaffeensis</italic> in any host. We report the first evidence of infections of <italic>A. phagocytophilum</italic> in <italic>Didelphis virginiana</italic> and <italic>D. marsupialis</italic> in Mexico. The infection rates and patterns we found of <italic>A. phagocytophilum</italic> suggest that dogs are more directly involved in the ecology of this pathogen than opossums. Despite the small prevalence found, our results are of public health concern because of the zoonotic capabilities of <italic>A. phagocytophilum</italic>, the high tick infestation rates found and because both opossums and free-ranging dogs can achieve high population densities in the region.</p>