| cardiopulmonary helminths in foxes from the pyrenees. | the present survey was carried out to investigate the prevalence of cardiopulmonary helminths in red foxes in pyrenees area and to evaluate the role of foxes in the eco-epidemiology of these nematodes. hearts and entire respiratory tracts were obtained from 87 foxes from vall d'aran region, pyrenees, catalonia, north-eastern spain. the cardiopulmonary tracts were dissected, flushed and examined for nematodes using sedimented flushing water. of the 87 examined foxes, 53 (61%) were positive for ca ... | 2015 | 26408595 |