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  • Title: [Investigation of an outbreak of norovirus gastroenteritis in a geriatric hospital].
    Author: Odelin MF, Ruel N, Berthelot P, Diana MC, Blanchon MA, Omar S, Bourlet T, Kohli E, Gonthier R, Pothier P, Pozzetto B.
    Journal: Ann Biol Clin (Paris); 2006; 64(2):141-7. PubMed ID: 16556524.
    Abstract:
    In aged-care facilities, gastroenteritis outbreaks are responsible for big trouble in the management of cares to the elderly. In November 2002, a gastroenteritis outbreak was observed in 5 of the 6 wards of the geriatric hospital La Charité, University Hospital of Saint-Etienne, France, with an attack rate of 38.5% in the elderly (70 infected from 182 patients) and of 26.0% in the nursing staff (40 infected from 154 agents). The outbreak lasted 30 days with a peak corresponding to 79.8% of the cases between the 11(th) and the 20(th) of November. The first cases were observed in the two short-term-care wards; then, the outbreak spread rapidly to 3 of the 4 long-term care units. Health care workers were contaminated later than the elderly (P < 0.001 by Kruskal-Wallis test). A self-administered questionnaire was documented by most of the nursing staff; the most frequently observed clinical symptoms in this population were nausea (82.5%), abdominal pain (80.0%), diarrhoea (70.5%), asthenia (67.5%) and vomiting (62.5%). Thirty-five percent of the health care workers ceased their work. The causative agent of the gastroenteritis was identified by RT-PCR in the stools of 5 aged persons as a norovirus close to the Lordsdale strain (genogroup II). These findings illustrate the respective role of elderly and health care workers in the spread of the gastroenteritis outbreak inside the geriatric hospital.
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