Abstract：
:A comparative study of egg morphology of Schistosoma mansoni carried out between 9 parasite populations from Guadeloupean foci demonstrates the existence of an intraspecific polymorphism. Three types of lateral spined eggs have been described and their relative proportions observed between populations are related to the participation of a wild host-reservoir (Rattus rattus) in the life cycle of the parasite. Eggs of schistosomes originating from urbanized foci where man plays the main role in the transmission are less polymorphic than those from sylvatic or mangrove foci where rats are involved in the parasite transmission dynamics. In some populations of murine schistosomes, the existence of eggs with an identical shape to those of experimental hybrids between S. mansoni and S. rodhaini suggests the presence of "S. rodhaini-like" parasites in certain foci of schistosomiasis from Guadeloupe.
journal_name
Acta Tropjournal_title
Acta tropicaauthors
Théron Asubject
Has Abstractpub_date
1986-12-01 00:00:00pages
335-42issue
4eissn
0001-706Xissn
1873-6254journal_volume
43pub_type
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