Abstract:
The tissue reaction in the intestine of rats caused by the newly isolated strains of Trichinella spiral's (Kenyan, Alaskan, N.W.T. and Senegal) was compared with a laboratory strain (old) to investigate the probable mechanism of lower infectivity of these strains to rat host. Histological examination of the intestinal tissues on days 7, 9, 12, 14, 18, 21 and 30 post-infection did not reveal any difference between the laboratory and the newly isolated strains in the time of onset or in the severity of the cellular reaction. Encapsulation of worms, precipitates around the orifices of the worms, or any degenerative changes associated with a resistant host were not observed. These observations led to the conclusion that contrary to the views of the previous workers the innate resistance of the rat host to the newly isolated strains is not due to the inhibition in the normal development and reproduction in the intestinal phase of Trichinella infection.
Page(s):
101-109
DOI:
DOI not available
Published:
Journal: Bulletin of zoology, Volume: 1, Issue: , Year: 1983