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A longitudinal study of natural infection of piglets with Streptococcus suis types 1 and 2

Published online by Cambridge University Press:  15 May 2009

I. D. Robertson ,
D. K. Blackmore ,
D. J. Hampson  and
Z. F. Fu
I. D. Robertson
Affiliation:
Department of Veterinary Pathology and Public Health, Massey University, Palmerston North, New Zealand
D. K. Blackmore
Affiliation:
Department of Veterinary Pathology and Public Health, Massey University, Palmerston North, New Zealand
D. J. Hampson
Affiliation:
Department of Veterinary Pathology and Public Health, Massey University, Palmerston North, New Zealand
Z. F. Fu
Affiliation:
Department of Veterinary Pathology and Public Health, Massey University, Palmerston North, New Zealand
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Summary

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Streptococcus suis types 1 and 2 were detected in nasal swabs taken from five litters of piglets sampled twice weekly from birth. The two types had been detected in all pigs by the time they were 38 and 25 days old respectively with mean ages of first detectable infection being 13·5 and 8·5 days. The prevalence of infection was not affected by housing conditions or the population density of pigs. Piglets originating from a sow with vaginal swabs positive for S. suis type 2 were infected earlier than piglets from non-vaginal carriers. It is concluded that infection of piglets with S. suis type 2 may occur during the birth process.

Information

Type
Research Article
Information
Epidemiology & Infection , Volume 107 , Issue 1 , August 1991 , pp. 119 - 126
Copyright
Copyright © Cambridge University Press 1991

References

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