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Studies on the incidence of Toxocara and Toxascaris spp. ova in the environment. 1. A comparison of flotation procedures for recovering Toxocara spp. ova from soil

Published online by Cambridge University Press:  15 May 2009

R. Quinn
Affiliation:
Department of Zoology, University of Glasgow, Glasgow G12 8QQ
H. V. Smith
Affiliation:
Department of Zoology, University of Glasgow, Glasgow G12 8QQ
R. G. Bruce
Affiliation:
Department of Zoology, University of Glasgow, Glasgow G12 8QQ
R. W. A. Girdwood
Affiliation:
Department of Bacteriology, Stobhill General Hospital, Glasgow G21 3UW
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Seven different flotation fluids were assessed for their efficiency in recovering Toxocara canis ova from artificially seeded soil samples. Using the most efficient (a saturated solution of magnesium sulphate plus 5 % potassium iodide) 25 g amounts of 234 environmental soil samples were examined for the presence of Toxocara spp. and Toxascaris ova. Twenty-six samples (11·1 %) yielded ova of one or other species. There was no discernible pattern of distribution of positives with relation to the source of the samples. The maximum number of ova recovered in any one sample was 19. All the ova recovered from the environment were considered viable and potentially infective.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1980

References

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