The synanthropization of wild animals puts public health at risk by promoting the circulation of zoonotic agents, found naturally in the wild, in the anthropic environment. The objective of this work was to carry out screening by molecular detection of pathogens of the Anaplasmatacea family in Didelphis albiventris, a specie characterized as having a synanthropic habit. Opossums that were dead (n = 25) after being road-killed were collected in the North of Paraná state, southern Brazil during the 2016 and 2018 years, through active search. A questionnaire was filled out with information about the animal and collected place. Biological samples of spleen and liver were collected. The genetic material extracted from the spleen and liver was submitted to molecular diagnosis through PCR for amplification of dsb of Ehrlichia and 16S genes for the other agents of the Anaplasmataceae family. One animal was positive for the genus Ehrlichia in semi-nested PCR for amplification of the 349 bp fragment of the dsb gene in extracted from the liver samples. In PCR for the 16S target no animal was positive. These are preliminary results that reinforce the circulation of Ehrlichia in opossums. To improve the knowledge of these agents in opossums more studies are necessary.
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