Absence of parvovirus shedding in feces of threatened carnivores from misiones, argentina
2018
Orozco, Marcela (María Marcela) | Bucafusco, Danilo | Argibay, Hernán Dario | Rinas, Miguel Angel | DeMatteo, Karen Elizabeth | Argüelles, Carina Francisca | Bratanich, Ana Cristina | Gürtler, Ricardo Esteban
Since its emergence in the 1970s, canine parvovirus (CPV) has spread worldwide and infects a wide variety of mammalian hosts, including domestic and nondomestic carnivores. Today it is one of the most important pathogenic viruses associated with high morbidity and mortality in domestic dogs (Canis familiaris). In South America, the range of wild hosts has been scarcely studied and the epidemiology of CPV in wildlife is still unclear. In 2011, feces from five wild carnivores (bush dog [Speothos venaticus], jaguar [Panthera onca], puma [Puma concolor], oncilla [Leopardus guttulus], and ocelot [Leopardus pardalis]) were collected in Misiones, Argentina, using a detection dog. Of the 289 feces collected, 209 (72.3%) had sufficient sample remaining to be used in this study and the majority of these were genetically confirmed to individual (81.3%) and sex (78.4%) level. In fact, these samples represent a minimum of 115 individuals (10 jaguars, 13 pumas, 33 ocelots, 38 oncillas, and 21 bush dogs). Through polymerase chain reaction, a 583-bp fragment in the VP2 gene of CPV was amplified in these samples. While no samples showed evidence of infection, this does not exclude the occurrence of CPV in wild carnivores in the area, as intermittent viral shedding could condition the diagnosis of CPV in feces of infected wild mammals. Locally, it is recommended that long-term monitoring of parvovirus be continued in wildlife and expanded to domestic carnivores. Internationally, this study provides a useful contribution to the approach to the sylvatic cycle of parvovirus in wild carnivores.
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