6533b823fe1ef96bd127e259

RESEARCH PRODUCT

An outbreak of food poisoning due to a genogroup I norovirus.

Angela DomínguezM. R. SalaT. LlovetJ. BuesaA. RecasensC. AriasNeus CardeñosaL. Salleras

subject

AdultMalemedicine.medical_specialtyAbdominal painGenotypeEpidemiologyFood HandlingCafeteriaFood Contaminationmedicine.disease_causeDisease OutbreaksFoodborne Diseasesfluids and secretionsInternal medicinemedicineHumansIndex caseCaliciviridae InfectionsFood poisoningbiologybusiness.industryNorovirusOutbreakmedicine.diseasebiology.organism_classificationVirologyGastroenteritisInfectious DiseasesSpainVomitingNorovirusFemaleHeadachesmedicine.symptombusinessResearch Article

description

Norovirus infection is associated with approximately 90% of epidemic non-bacterial acute gastroenteritis. The objective of this study is to describe an outbreak of norovirus genogroup I gastroenteritis which affected workers in a hospital and was attributed to food prepared by an infected food handler. Forty cases were detected, of whom 80% were interviewed. The index case was the cook employed in the hospital cafeteria. The following symptoms were observed: abdominal pain in 90·6%, vomiting in 71·9%, diarrhoea in 71·9%, general indisposition in 62·5%, headaches in 53·1% and fever in 32·4% of cases. The initial symptoms were abdominal pain in 37% and vomiting in 28%. Of the 14 samples analysed by RT–PCR, 12 (86%) were positive for a genogroup I norovirus. After sequencing the strain was identified as genotype Desert Shield. Many of the foodstuffs consumed were made by hand, favouring transmission from the index case to the cafeteria users.

10.1017/s0950268804003139https://pubmed.ncbi.nlm.nih.gov/15724726