The Response of Sheep Vaccinated With Irradiated 'Trichostrongylus-Colubriformis' Larvae to Impulse and Sequential Challenge With Normal Larvae

Author(s)
Gregg, Peter
Dineen, J K
Publication Date
1978
Abstract
Sheep aged 9-10 months were vaccinated with three doses of 20 000 irradiated 'Trichostrongylus colubriformis' larvae at fortnightly in tervals. This gave 97-99% protection against subsequent 'impulse' challenge with 40 000 normal larvae or 'sequential' challenge with 2 000 larvae/week-day for 4 weeks. The sheep were protected against both types of challenge when worms from the immunizing infections were present at the time of challenge, and when these worms were first removed by anthelmintic treatment.
Citation
Veterinary Parasitology, 4(1), p. 49-53
ISSN
1873-2550
0304-4017
Link
Language
en
Publisher
Elsevier BV
Title
The Response of Sheep Vaccinated With Irradiated 'Trichostrongylus-Colubriformis' Larvae to Impulse and Sequential Challenge With Normal Larvae
Type of document
Journal Article
Entity Type
Publication

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