Trichinella species circulating among wild and domestic animals in Romania
Blaga, Radu | Gherman, Calin | Cozma, Vasile | Zocevic, Aleksandar | Pozio, Edoardo | Boireau, Pascal
Trichinellosis is one of the most important zoonotic diseases in Romania. Even though the disease is a serious public health concern, only a limited number of Trichinella isolates have been identified at the species level; in the past, all larvae were assumed to be Trichinella spiralis. The present study was conducted to identify Trichinella spp. circulating among wild and domestic animals in Romania, using PCR-based methods. Trichinella spp. larvae originating from 54 wild and 23 domestic mammals were examined. No Trichinella spp. larvae were detected in muscle samples of 182 birds. T. spiralis and Trichinella britovi were the only two species identified in the 40 isolates that yielded a positive PCR result. Overall, T. britovi was more prevalent (n =26; 65%) than T. spiralis (n =14; 35%). T. spiralis was the predominant species found in domestic animals (n =9; 75%), while T. britovi was more prevalent in wildlife (n =24; 86%). No mixed infections were found. The highest prevalence of Trichinella infection was detected in wolves (11/35; 31%), in European wild cats (4/28; 14%), and in red foxes (5/71; 7%). The distribution of Trichinella spp. in Romania does not show a species-specific clustering; both of the two species found were present over the entire range of counties studied.
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