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Chlamydiosis in birds in Great Britain: 2. Isolations of Chlamydia psittaci from birds sampled between 1976 and 1984

Published online by Cambridge University Press:  19 October 2009

B. J. Bevan  and
C. D. Bracewell
B. J. Bevan
Affiliation:
Ministry of Agriculture, Fisheries and Food, Central Veterinary Laboratory, New Haw, Weybridge, Surrey KT15 3NB
C. D. Bracewell
Affiliation:
Ministry of Agriculture, Fisheries and Food, Central Veterinary Laboratory, New Haw, Weybridge, Surrey KT15 3NB
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Summary

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A total of 1531 diagnostic submissions from birds were examined by culture for the presence of Chlamydia psittaci between June 1976 and December 1984 by growth in NCTC 929 clone L mouse fibroblast cells, pretreated with an inhibitor of cell division, followed by direct immunofluorescence microscopy. Of these, 196 were found positive. The continued importance of psittacine birds as potential sources of infection was shown by the high number of positives (139) obtained from birds of that order. The percentage of submissions found positive was highest in parakeets (30·1) and was fairly high in psittacines as a group (16·6), but the latter figure was exceeded by the group ofcollared doves (Streptopelia decaocto) and wood pigeons (Columba palumbus) (25·0). Domestic poultry generally gave low rates, turkeys being the highest.

Both the numbers of submissions and their rates of positives increased between 1980 and 1984.

Comparing the isolation rates from the various organs sampled, the intestines gave the highest rate (20·4 per cent positive), closely followed by the other internal sites. The superficial swabbed sites (eye, nasal cavity, cloaca) gave lower rates.

Type
Research Article
Information
Journal of Hygiene , Volume 96 , Issue 3 , June 1986 , pp. 453 - 458
Copyright
Copyright © Cambridge University Press 1986

References

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