A survey of intestinal helminths in wild carnivores from the Tatra National Park, southern Poland.

From January 2011 to July 2012, 144 faecal samples of wild carnivores from the Tatra National Park were examined to evaluate the prevalence of intestinal helminths--72 of wolves (Canis lupus), 45 of red foxes (Vulpes vulpes), 15 of pine martens (Martes martes) and 12 of brown bears (Ursus arctos). In wolves, monospecific infection with Trichuris vulpis (13.9%), Toxocara canis (6.9%), Ancylostoma/Uncinaria (5.6%) and taeniids (1.4%) was revealed. In red foxes, the most prevalent infection was 7 vulpis (64.4%), followed by T. canis (11.1%), Ancylostoma/Uncinaria (8.9%) and taeniids (2.2%). Monospecific infection with T. vulpis was more frequent (44.4%), than infection with two species, i.e. T > vulpis with Ancylostoma/Uncinaria, T. vulpis with T. canis or T. vulpis with taeniids (17.8%). In pine martens, Trichuris spp. was the most prevalent (40.0%), while T. cati and Ancylostoma/Uncinaria were found in 13.3% and 6.7% samples, respectively. In faeces from brown bears, no parasite eggs were found. The present survey of wild carnivores revealed a significant prevalence of parasites such as Toxocara spp. and Trichuris spp. (8.3% and 31.0% in all examined samples, respectively), which are hazardous to human and animal health.