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Scand J Infect Dis ; 37(3): 200-4, 2005.
Article in English | MEDLINE | ID: mdl-15849053

ABSTRACT

The human caliciviruses norovirus and sapovirus are leading causes of acute, non-bacterial gastroenteritis. In contrast to norovirus, sapovirus is known to give infections mainly in infants and young children. We describe a nosocomial outbreak of gastroenteritis associated with sapovirus involving 23 adult patients and medical staff. The mean age of the patients and medical staff was 52 y and the major signs and symptoms were nausea, diarrhoea, vomiting, abdominal cramp, headache, myalgia and fever. More patients had diarrhoea (72%) than vomiting (56%) and the mean duration of symptoms was 6 d. A secondary attack rate of 45% was seen affecting in all 10 persons with a mean age of 29 y. Sequences of the capsid gene revealed a 97% nucleotide homology to the sapovirus genogroup IV reference strain Chiba/000671T/1999. This is one of the first reported nosocomial outbreaks of sapovirus infection among adults and shows that a diagnostic test for sapovirus should be included in investigation of gastroenteritis among adults.


Subject(s)
Cross Infection/epidemiology , Cross Infection/virology , Disease Outbreaks , Gastroenteritis/epidemiology , Gastroenteritis/virology , Sapovirus/isolation & purification , Adult , Aged , Aged, 80 and over , Caliciviridae Infections/epidemiology , Caliciviridae Infections/virology , Female , Health Personnel , Hospitals , Humans , Male , Middle Aged , Molecular Sequence Data , Sapovirus/classification , Sapovirus/genetics , Sequence Analysis, DNA , Sweden/epidemiology
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