Evidence of potential gene flow in Trichinella spiralis and in Trichinella britovi in nature
1997
Pozio, E. | Serrano, F.J. | La Rosa, G. | Reina, D. | Perez-Martin, E. | Navarrete, I.
During a study on the epidemiology of trichinellosis in Spain, 91 animals and 9 samples of sausages homemade with pork were found positive for Trichinella. Parasite identification at the species level was carried out by the polymerase chain reaction with a random primer on single muscle larvae. Seventy-one animals harbored Trichinella spiralis (17 domestic pigs, 53 wild boars, 1 fox), and 17 were infected with Trichinella britovi (1 domestic pig, 13 wild boars, 3 foxes). Sausages were infected with T. spiralis. Three wild boars (3.3% of infected animals) harbored both species. The presence of both T. spiralis and T. britovi in the same host suggests that infections with 2 isolates of the same species can also occur, permitting the gene flow within the species.
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