Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-27T15:02:05.616Z Has data issue: false hasContentIssue false

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
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

REFERENCES

Borg, O. A. & Woondruf, A. W. (1973). Prevalence of infective ova of Torocara species in public places. British Medwal Journal iv, 40.Google Scholar
Faust, E. C., D'antoni, J. S., Odom, V., Miller, M. J., Peres, C., Sawitz, W., Thomen, L. F., Tobie, J. & Walker, J. H. (1938). A critical study of clinical laboratory techniques for the diagnosis of protozoan cysts and helminth eggs in faeces. American Journal of Tropical Medicine 18, 169.Google Scholar
Girdwood, R. W. A., Quinn, R., Smith, H. V. & Bruce, R. G. (1978). Assessment of some aspects of the potential human health hazard presented by canine toxocariasis in the Glasgow area. Communicable Diseases Scotland Weekly Report 12, No. 32, vii.Google Scholar
Spenceh, F. M. & Monroe, J. S. (1975). The Color Atlas of Intestinal Parasites. Springfield, Illinois: Charles C. Thomas.Google Scholar
Woodruff, A. W. (1970). Toxocariasis. British Medical Journal iii, 663.CrossRefGoogle Scholar
Woogruff, A. W. & Shah, A. I. (1976). Improved method of recovering Toxocara species ova from soil. British Medical Journal ii, 621.CrossRefGoogle Scholar