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Analysis of mixed foot–and–mouth disease virus infections in Saudi Arabia: prolonged circulation of an exotic serotype

Published online by Cambridge University Press:  15 May 2009

E. L. Woodbury ,
A. R. Samuel ,
N. J. Knowles ,
S. M. Hafez  and
R. P. Kitching
E. L. Woodbury
Affiliation:
Kings College, University of London, Campden Hill Road, Kensington, London W8, UK
A. R. Samuel
Affiliation:
AFRC Institute for Animal Health, Pirbright Laboratory, Ash Road, Pirbright, Surrey GU24 ONF, UK
N. J. Knowles
Affiliation:
AFRC Institute for Animal Health, Pirbright Laboratory, Ash Road, Pirbright, Surrey GU24 ONF, UK
S. M. Hafez
Affiliation:
C/O National Agriculture and Water Research Centre, PO Box 17285, Riyadh 11484, Saudi Arabia
R. P. Kitching
Affiliation:
C/O National Agriculture and Water Research Centre, PO Box 17285, Riyadh 11484, Saudi Arabia
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Summary

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Plaque purification of foot-and-mouth disease (FMD) type O viruses isolated from cattle in Saudi Arabia showed the presence of mixed serotype infections. Sixteen out of 31 samples collected between 1985 and 1991 also contained Asia 1 virus, a serotype which had previously only been isolated from a single outbreak in that country in 1980. Nucleotide sequences of the Asia 1 component of all these samples revealed little variation and showed that they were closely related to both a Russian lapinized vaccine virus strain (Asia 1/Tadzhikistan/64), and to a field isolate from Turkey (Asia 1/TUR/15/73). Although mixed FMD infections have been observed previously this is a first report of a serotype, considered to be exotic to a country, co-existing undetected for an extended period of time.

Type
Research Article
Information
Epidemiology & Infection , Volume 112 , Issue 1 , February 1994 , pp. 201 - 212
Copyright
Copyright © Cambridge University Press 1994

References

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