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  • Title: Cystic echinococcosis and other helminth infections of wild boar in northeastern and northwestern regions of Tunisia.
    Author: Lahmar S, Torgerson PR, Mhemmed H, Tizaoui L, Mhadhbi N, Bani A, Driss H, Ghrissi N, Makhzoumi M, Ben Houidi A, Dhibi M, Said Y, Pozio E, Boufana B.
    Journal: Parasitology; 2019 Sep; 146(10):1263-1274. PubMed ID: 31142388.
    Abstract:
    This study identified helminth species of wild boar (Sus scrofa) originating from northeastern and northwestern regions of Tunisia using 297 lungs, 297 livers, 264 intestinal tracts, 120 samples of muscle tissue (tongue, masseter, diaphragm, inter-costal) and 232 faecal samples derived from a total of 591 animals. Host gender was registered for the lung and liver wild boar group, which included 163 males and 134 females. All animals, excluding those used to retrieve muscular samples, were classified into three age classes, <2 (n = 212), 2-3 (n = 208) and ⩾4 years old (n = 141). Helminth fauna of the examined wild boar included 14 parasite species: one trematode (adult, Brachylaemus suis), three cestodes (metacestodes of Echinococcus granulosus, Taenia hydatigena cysticercus, adult, Hymenolepis diminuta), nine nematodes (adults of Metastrongylus apri, Metastrongylus pudendotectus, Ascarops strongylina, Globocephalus urosubulatus, Physocephalus sexalatus, Gnathostoma hispidum, Gongylonema pulchrum and eggs of Strongyloides ransoni and Capillaria spp.) and one acanthocephalan (adult, Macracanthorhynchus hirudinaceus). Trichinella larvae were not recovered from any of the 30 wild boar examined. Results showed a 73.5% global prevalence of infection with visceral helminths, 67.3% of which were lung and hepatic infections and 80.3% of helminths were recovered from the gastrointestinal tract. The most prevalent parasite was M. hirudinaceus (61.7%) while the highest intensity of infection was observed for Metastrongylus spp. The most prevalent cestode was E. granulosus (18.9%). This is the first detailed study on helminth infections of wild boar from a North African country.
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