Publication: Hypersensitivity induced in dogs by nymphal extract of Amblyomma cajennense ticks (Acari:Ixodidae)
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Coadvisor
Graduate program
Undergraduate course
Journal Title
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Volume Title
Publisher
New York Acad Sciences
Type
Article
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Abstract
In general, hosts develop resistance to ticks after repeated infestations; nevertheless, several studies on naturally occurring host-tick interactions were unable to detect resistance of hosts to ticks even after repeated infestations. The purpose of this investigation was to study the type of cutaneous hypersensitivity to unfed nymphal extract of A. cajennense in dogs, which, unlike guinea pigs, do not develop resistance. A first, but no second, peak in skin reaction was observed, suggesting that cellular immunity is an important mechanism of resistance to ticks. This may partially explain why guinea pigs, but not dogs, develop resistance against ticks.
Description
Keywords
Amblyomma cajennense, Rickettsia rickettsii, Tick infestations, Animal experiment, Animal model, Arthropod, Cellular immunity, Conference paper, Controlled study, Dog, Extract, Guinea pig, Host parasite interaction, Host resistance, Hypersensitivity, Infestation, Nonhuman, Recurrent disease, Skin manifestation, Tick, Animals, Arachnid Vectors, Dog Diseases, Dogs, Guinea Pigs, Host-Parasite Relations, Hypersensitivity, Delayed, Immunity, Cellular, Immunity, Natural, Ixodidae, Species Specificity, Tick Infestations, Acari, Amblyomma, Animalia, Arachnida, Arthropoda, Canis familiaris, Cavia, Cavia porcellus, Hexapoda, Rickettsia, Sus scrofa
Language
English
Citation
Annals of the New York Academy of Sciences, v. 969, p. 184-186.
