Possible acquired resistance of dogs successively infested by Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) nymphs

The present study aimed to evaluate the occurrence of immune resistance in dogs successively infested with Amblyomma cajennense nymphs. Five animals were submitted to four consecutive infestations with A. cajennense nymphs, at fourteen-day intervals. For each infestation, 50 nymphs were used per ani...

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Bibliographic Details
Published in:Revista brasileira de parasitologia veterinaria 2009-12, Vol.18 Suppl 1 (e1), p.40-42
Main Authors: de Freitas, Carolina Maria Vianna, Leite, Romário Cerqueira, Bastianetto, Eduardo, da Cunha, Arildo Pinto, de Paiva Belo, Ana Cristina Passos
Format: Article
Language:English
Subjects:
Adaptive Immunity
Animals
Dog Diseases - immunology
Dogs
Ixodidae
Nymph
Tick Infestations - immunology
Tick Infestations - veterinary
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Summary:The present study aimed to evaluate the occurrence of immune resistance in dogs successively infested with Amblyomma cajennense nymphs. Five animals were submitted to four consecutive infestations with A. cajennense nymphs, at fourteen-day intervals. For each infestation, 50 nymphs were used per animal and data on the parasitic and non-parasitic periods were recorded. The average recovering rate of engorged nymphs in the successive infestations were 52.0, 29.2, 9.6 and 12.8%, respectively, with a significant reduction (p
ISSN:0103-846X
1984-2961
1984-2961
DOI:10.4322/rbpv.018e1007