| trichinella sp. in red foxes (vulpes vulpes) from catalonia, ne spain. | european legislation allows the official recognition of trichinella-free pig holdings, provided trichinella sp. infection is absent from humans and prevalence of trichinella sp. infection in red foxes (vulpes vulpes) is below 0.1% in the area, region or country. tibialis anterior muscle samples from 1,319 red foxes captured in catalonia (ne spain) between 1998 and 2007 were analyzed for trichinella sp. using the digestion method. four foxes resulted positive (one in 1999, one in 2002 and two in ... | 2011 | 21327993 |