Infestation in the dog by the paralysis tick Ixodes holocyclus. 1. Clinical and histological findings.

Jan Ilkiw, D. M. Turner, C. R. Howlett

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Under laboratory conditions 8 dogs were infested with Ixodes holocyclus and the clinical signs and histological findings were recorded. Seven of the dogs developed clinical signs of the disease, died and were subjected to a post-mortem examination, while the eighth dog remained normal. The clinical signs were consistent between animals and enabled the course of the disease to be subdivided into 5 stages to facilitate analysis of data in future experiments. The most prominent feature of the disease was dysfunction of the efferent motor system although some disturbance of the afferent pathways and involvement of the autonomic nervous system did occur. The period elapsing between attachment of the ticks and onset of signs varied from 5.5 to 7 days, while the mean duration of the disease was 23.3 h. The histopathology demonstrated moderate to severe congestion of the liver, kidney and lungs, and in some lung sections pulmonary oedema was present.

Original languageEnglish (US)
Pages (from-to)137-139
Number of pages3
JournalAustralian Veterinary Journal
Volume64
Issue number5
StatePublished - May 1987
Externally publishedYes

ASJC Scopus subject areas

  • veterinary(all)

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