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Repeated patent infection of adult dogs with Toxocara camis

Published online by Cambridge University Press:  05 June 2009

R. M. Maizels  and
M. Meghji
R. M. Maizels
Affiliation:
Division of Parasitology, National Institute for Medical Research, Mill Hill, London NW7 1AA
M. Meghji
Affiliation:
Division of Parasitology, National Institute for Medical Research, Mill Hill, London NW7 1AA
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Abstract

Three adult male greyhounds have been repeatedly infected with Toxocara canis by oral administration of 100 to 200 infective ova. Each infection has become patent as shown by the presence of eggs in faeces. Anthelmintic treatment between 7 and 14 weeks after infection yielded an average of 25% of the inoculum as adult worms. These dogs have continued to be fully susceptible to infection despite repeated exposure to this parasite, and despite the presence of scrum antibody to both parasite surface and secreted antigens. These findings imply that adult dogs may not always be immune to toxocaral infection and may therefore contribute significantly to the problem of environmental contamination with T. canis ova.

Type
Research Article
Information
Journal of Helminthology , Volume 58 , Issue 4 , December 1984 , pp. 327 - 333
Copyright
Copyright © Cambridge University Press 1984

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