On December 2006, an outbreak of gastroenteritis occurred at a residential-care facility for the elderly in northern Italy. Thirtyfive of 61 individuals interviewed (attack rate, 57.4%) fell ill. In 94.3% of cases, the onset of illness was within 48 h of a Christmas party at the facility. Norovirus (NoV) was detected by RT-PCR in 24 of 31 individuals examined, including three asymptomatic food-handlers, in whom there was evidence of long-lasting excretion of viral particles. The identification of a sequence referring to the ‘2006a GII.4 NoV variant’ in all examined strains supported the hypothesis of a common point source. This retrospective cohort study is the first report on an outbreak of NoV gastroenteritis in an Italian residential-care facility for the elderly.

An outbreak of norovirus infection in an Italian residential-care facility for the elderly / Medici, Maria Cristina; Morelli, A; Arcangeletti, Maria Cristina; Calderaro, Adriana; DE CONTO, Flora; Martinelli, M; Abelli, L. A.; Dettori, Giuseppe; Chezzi, Carlo. - In: CLINICAL MICROBIOLOGY AND INFECTION. - ISSN 1198-743X. - 15(1):(2009), pp. 97-100. [10.1111/j.1469-0691.2008.02117.x]

An outbreak of norovirus infection in an Italian residential-care facility for the elderly

MEDICI, Maria Cristina;ARCANGELETTI, Maria Cristina;CALDERARO, Adriana;DE CONTO, Flora;DETTORI, Giuseppe;CHEZZI, Carlo
2009-01-01

Abstract

On December 2006, an outbreak of gastroenteritis occurred at a residential-care facility for the elderly in northern Italy. Thirtyfive of 61 individuals interviewed (attack rate, 57.4%) fell ill. In 94.3% of cases, the onset of illness was within 48 h of a Christmas party at the facility. Norovirus (NoV) was detected by RT-PCR in 24 of 31 individuals examined, including three asymptomatic food-handlers, in whom there was evidence of long-lasting excretion of viral particles. The identification of a sequence referring to the ‘2006a GII.4 NoV variant’ in all examined strains supported the hypothesis of a common point source. This retrospective cohort study is the first report on an outbreak of NoV gastroenteritis in an Italian residential-care facility for the elderly.
2009
An outbreak of norovirus infection in an Italian residential-care facility for the elderly / Medici, Maria Cristina; Morelli, A; Arcangeletti, Maria Cristina; Calderaro, Adriana; DE CONTO, Flora; Martinelli, M; Abelli, L. A.; Dettori, Giuseppe; Chezzi, Carlo. - In: CLINICAL MICROBIOLOGY AND INFECTION. - ISSN 1198-743X. - 15(1):(2009), pp. 97-100. [10.1111/j.1469-0691.2008.02117.x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2293928
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