Abstract
Publisher Summary This chapter describes the infective stage of nematode parasites and its significance in parasitism. There is a great variation in the complexity of the life cycles of nematodes, and an underlying pattern can be discerned that finds its simplest expression among the free-living species. The life cycle is modified to produce a specific stage that can survive the rigors of transport and has patterns of behavior that increase the chances of obtaining transport. The chapter describes the ensheathed larva and the egg as infective stages. The sensory physiology of the infective larva must differ from that of other stages, because it must be able to “recognize” its host. The probability that infection will occur may be strongly affected by the behavior of infective larvae. The survival of the infective larvae of strongyles on pasture is also of great importance to the husbandman. Infectiousness is the capacity of an organism to infect its host and to live on or in the host as a parasite. The process of infection among different parasites might be related to the site at which infection occurs rather than the phylogenetic relationships of the parasites.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
