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Studies on host resistance to secondary infections of Raillietina cesticillus Molin, 1858 in the fowl

Published online by Cambridge University Press:  06 April 2009

J. S. Gray
J. S. Gray
Affiliation:
Zoology Department, Royal Holloway College (University of London), Englefield Green, Surrey
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Extract

Worms of secondary infections of Raillietina cesticillus established in 10-week-old birds but failed to grow mature strobilae. This was taken as an indication of resistance to the cestode. The resistance was inhibited by the immunosuppressant and anti-inflammatory drug dexamethasone, which prevented the local inflammation around attached scolices characteristic of secondary infections of R. cesticillus. Mast cell hyperactivity and eosinophil infiltration in intestinal tissues and immunofluorescent antibodies in sera of infected birds were also demonstrated. Scolices without strobilae from refractory hosts with both primary and secondary infections regrew their strobilae when transplanted into susceptible hosts.

Type
Research Article
Information
Parasitology , Volume 67 , Issue 3 , December 1973 , pp. 375 - 382
Copyright
Copyright © Cambridge University Press 1973

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References

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