RESUMO
Over 400 office workers from the same unit of a manufacturing company in Stockholm County, Sweden, fell ill with gastroenteritis. A retrospective cohort study of office workers in the affected unit demonstrated that canteen visitors on one day had an increased risk of illness [risk ratio (RR) 27.1, 95% confidence interval (CI) 15.7-46.8] compared to non-visitors. A second study, investigating canteen visitors' consumption of particular food items, showed that both tomatoes from the salad buffet (RR 5.6, 95% CI 3.2-9.6) and hamburgers (RR 4.9, 95% CI 2.4-9.8) were the most likely vehicles of infection. Norovirus GI.3 (Desert Shield) was identified in stool samples from three office workers and from a food handler who prepared the tomatoes for the salad buffet and hamburger ingredients before vomiting at the workplace on 12 November. The outbreak could have been prevented if the food items prepared by the food handler some hours before vomiting had not been served.
Assuntos
Infecções por Caliciviridae/epidemiologia , Surtos de Doenças , Doenças Transmitidas por Alimentos/epidemiologia , Gastroenterite/epidemiologia , Norovirus/isolamento & purificação , Adulto , Idoso , Infecções por Caliciviridae/virologia , Fezes/virologia , Feminino , Doenças Transmitidas por Alimentos/virologia , Gastroenterite/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Suécia/epidemiologia , Adulto JovemRESUMO
Campylobacteriosis is the most common reported bacterial gastrointestinal disease in Sweden. Food-borne outbreaks of campylobacteriosis in Sweden are rather rare except for, usually rather small, family outbreaks. Water-borne outbreaks of campylobacteriosis, however, have affected several thousand persons in the past.
Assuntos
Infecções por Campylobacter/epidemiologia , Surtos de Doenças/estatística & dados numéricos , Internet , Vigilância da População/métodos , Medição de Risco/métodos , Inquéritos e Questionários , Estudos de Coortes , Humanos , Incidência , Fatores de Risco , Suécia/epidemiologiaRESUMO
An increased incidence of domestic hepatitis A without any obvious source of infection in Sweden and a small outbreak in late spring 2001 led to the undertaking of a case-control study. Consumption of imported rocket salad was clearly associated with disease (odds ratio 9.1, 95% confidence interval 1.5 to 69). The importation of vegetables from countries where hepatitis A is endemic to countries where this disease is not endemic continues to be a public health problem.