The strength of interactions was assessed from differences in the size achieved by infective cystacanths in the intermediate host.
It is possible that the first intermediate host is only infective during a specific season other than late summer/early autumn.
Screening after 6 and 27 days identified copepods harbouring infective procercoids.
If so, age of the fish should differ between groups identified by infective history.
The rate is dependent on the frequency of infective combinations and the asymptote is dependent on the number and frequency of infective combinations.
A novel protein associated with the transition to parasitism by infective hookworm larvae.
The infective metacercariae were harvested from the fishes and fed to each hamster by gastric intubation.
Fleas in the act of feeding frequently eject excreta which may be loaded with the flagellates in the infective stage.
