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Mumps outbreak in vaccinated children in Gipuzkoa (Basque Country), Spain

Published online by Cambridge University Press:  10 January 2003

M. MONTES ,
G. CILLA ,
J. ARTIEDA ,
D. VICENTE  and
M. BASTERRETXEA
M. MONTES
Affiliation:
Servicio de Microbiología, Hospital Donostia, Paseo Dr. Beguiristain s/n, 20014 San Sebastián, Spain
G. CILLA
Affiliation:
Servicio de Microbiología, Hospital Donostia, Paseo Dr. Beguiristain s/n, 20014 San Sebastián, Spain
J. ARTIEDA
Affiliation:
Unidad de Epidemiología, Dirección Territorial de Sanidad de Gipuzkoa, Gobierno Vasco, San Sebastián, Spain
D. VICENTE
Affiliation:
Servicio de Microbiología, Hospital Donostia, Paseo Dr. Beguiristain s/n, 20014 San Sebastián, Spain
M. BASTERRETXEA
Affiliation:
Unidad de Epidemiología, Dirección Territorial de Sanidad de Gipuzkoa, Gobierno Vasco, San Sebastián, Spain
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Abstract

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A mumps outbreak occurred in a group of vaccinated children aged 3–4 years in San Sebastián (Gipuzkoa, Basque Country, Spain) in 2000 during the same period as a revaccination campaign against measles–mumps–rubella (MMR) was performed. The clinical cases were confirmed by viral culture, detection of viral RNA and/or specific IgM. Eighty-eight percent of the children had been vaccinated with the Rubini strain and the remainder with the Jeryl–Lynn strain. The attack rate was 47·9% (35 cases in 73 school-attending children of this age). The outbreak was caused by an H genotype strain of mumps virus which was circulating at the same time as a D genotype strain that caused sporadic cases. By sequencing the small hydrophobic (SH) gene, the strains of the clinical cases were identified as wild-type mumps virus with heterologous genotypes in comparison to the vaccine strains used in our area.

Type
Research Article
Information
Epidemiology & Infection , Volume 129 , Issue 3 , December 2002 , pp. 551 - 556
Copyright
2002 Cambridge University Press