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Accession Number:
AD0670397
Title:
PROTECTIVE REACTIONS AGAINST TICKS IN RODENTS,
Descriptive Note:
Corporate Author:
NAVAL MEDICAL RESEARCH UNIT NO 3 CAIRO (EGYPT) DEPT OF MEDICAL ZOOLOGY
Report Date:
1968-01-01
Pagination or Media Count:
6.0
Abstract:
Experiments were carried out on feeding Ixodes persulcatus larvae on five species of rodents bank and northern redbacked vole, root vole, long-tailed and yellow-necked field mice. A comparison was made of protective reactions in rodents captured in areas with different incidence of larvae, in animals of different ages, and in animals on which the larvae were fed for the first and the second time. Rodents living under natural conditions in areas with high incidence of ticks were found under experimental condition to feed less larvae than those living in areas with low incidence of ticks. Adult animals which were food providers for a large number of ticks in nature, experimentally fed less larvae than young animals not attacked by ticks. Animals of those species, which are in nature subjected to few tick attacks, under experimental conditions with limited opportunities for active combing fed more larvae than did those representing the usual food providers of ticks in nature. The above findings indicate that rodents subjected to tick attacks develop protective reactions of behavior and, probably, immunity to repeated sucking of ticks. The mechanism of this immunity is not yet clear. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
