first report of lymnaea columella say, 1817 (pulmonata: lymnaeidae) naturally infected with fasciola hepatica (linnaeus,1758) (trematoda: digenea) in argentina.we report the first evidence of natural infection of lymnaea columella with fasciola hepatica in argentina. a sample of 601 snails was collected in may 2003 in northeastern corrientes, a province bounded on the north by paraguay, on the east by brazil and on the southeast by uruguay. among 500 examined snails, 44 (8.8%) were exclusively infected with f. hepatica. parasite identification was based on morphological features of cercariae from snails, and of eggs and adult flukes from wistar rats. w ...200414762513
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