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Seroprevalence of astrovirus types 1 and 6 in London, determined using recombinant virus antigen

Published online by Cambridge University Press:  15 May 2009

S. Kriston
Affiliation:
Department of Virology, Camelia Botnar Laboratories, Hospital for Children, Great Ormond Street, London WCIN 3JH
M. M. Willcocks
Affiliation:
School of Biology Sciences, University of Surrey, Guildford GU2 5XH
M. J. Carter
Affiliation:
School of Biology Sciences, University of Surrey, Guildford GU2 5XH
W. D. Cubitt*
Affiliation:
Department of Virology, Camelia Botnar Laboratories, Hospital for Children, Great Ormond Street, London WCIN 3JH
*
* Author for correspondence
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We have developed a microimmunofluorescence test (IF) which uses cells infected with a recombinant baculovirus which expresses the capsid proteins of astrovirus types 1 or 6. The IF test was sensitive and specific and the results for human astrovirus type 1 (HAst-1) were comparable to those obtained by immune electronmicroscopy and radioimmunoassay. Application of the test to a panel of 273 sera collected from patients and staff at two childrens hospitals in London showed that over 50% of the population were infected by Hast-1 between the age of 5 and 12 months rising to 90% by 5 years, whereas human astrovirus type 6 (HAst6) was relatively uncommon (10–30%) in all age groups.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1996

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