Unraveling Sarcocystis miescheriana and Sarcocystis suihominis infections in wild boar

Veterinary Parasitology
Catarina CoelhoMadalena Vieira-Pinto

Abstract

Sarcocystis species are worldwide spread cyst-forming protozoa that can infect wild boar but little is known about the prevalence of these parasites. In this study we assessed the prevalence of Sarcocystis spp. infections in wild boars from northeastern Portugal, for which novel PCR testing assays targeting Sarcocystis genus, S. miescheriana and S. suihominis were implemented, and risk factors potentially associated with these infections were evaluated. Samples from muscle tissue, namely diaphragm (n=102), oesophagus (n=96) and heart (n=101), were collected from a total of 103 wild boar hunted between October 2011 and February 2012. Diaphragm muscle was used for the PCR detection of Sarcocystis nucleic acids since a higher proportion of samples showed the presence of cysts during histological examination. PCR assay targeting Sarcocystis genus yielded a 73.8% infection rate, which indicate a high level of exposure to these protozoan parasites among wild boars. These samples showed to be positive with the S. miescheriana-specific PCR assay and no sample was positive with the S. suihominis-specific assay, suggesting that a single species infecting wild boar is circulating in Portugal. These results were confirmed by the partial se...Continue Reading

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Citations

Feb 23, 2018·Ecology and Evolution·Ines LesniakOliver Krone
Sep 16, 2020·Parasitology Research·Petras PrakasGediminas Šulinskas
Feb 25, 2021·Research in Veterinary Science·Benjamin M Rosenthal
May 30, 2021·Comparative Immunology, Microbiology and Infectious Diseases·Bruna Correa LopesFabiana Quoos Mayer

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