1. Organisms can protect themselves against parasitism by reducing either parasite burden (resistance) or damage caused by parasites at a given burden (tolerance), but little is known about resistance and tolerance to multiple parasites among wild animal populations and species. The fitness effects of parasitism can be broken down into two components: (i) cost of parasite exposure, the differen...

We examined the in vivo activity of tribendimidine against selected trematodes. A single 150 mg/kg dose of tribendimidine achieved a 99.1% reduction of Clonorchis sinensis in rats. 400 mg/kg tribendimidine reduced Opisthorchis viverrini in hamsters by 95.7%. High doses of tribendimidine showed no activity against Schistosoma mansoni and Fasciola hepatica.

Gonad intrusion of the larval trematodes often results in substantial damage to reproductive capacity some economically important marine bivalves. Such detrimental impacts trematode infection are observed Manila clam Ruditapes philippinarum coastal Yellow Sea, although effects on host’s reproduction poorly understood. Accordingly, this study attempts understand parasitism using histology. Of 1,...