Retenir un délai de 48 heures entre l'admission des patients et le premier prélèvement positif est-il suffisant pour différencier les souches acquises à l'hôpital et importées de Staphylococcus aureus résistant à la méticilline?

Muto, 2003, SHEA guidelines for preventing nosocomial transmission of multidrug-resistant strains of Staphylococcus aureus and Enterococcus, Infect. Control Hosp. Epidemiol., 24, 362, 10.1086/502213 Lucet, 2005, High prevalence of carriage of methicillin-resistant Staphylococcus aureus at hospital admission in elderly patients: implications for infection control strategies, Infect. Control Hosp. Epidemiol., 26, 121, 10.1086/502514 Eveillard, 2006, Consideration of age at admission for selective screening to identify methicillin-resistant Staphylococcus aureus carriers to control dissemination in a medical ward, Am. J. Infect. Control, 34, 108, 10.1016/j.ajic.2006.01.001 Sanford, 1994, Efficient detection and long-term persistence of the carriage of methicillin-resistant Staphylococcus aureus, Clin. Infect. Dis., 19, 1123, 10.1093/clinids/19.6.1123 Scanvic, 2001, Duration of colonization by methicillin-resistant Staphylococcus aureus after hospital discharge and risk factors for prolonged carriage, Clin. Infect. Dis., 32, 1393, 10.1086/320151 Comité de l’antibiogramme de la Société française de microbiologie. Communiqué 2006. Merrer, 2000, « Colonization pressure » and risk of acquisition of methicillin-resistant Staphylococcus aureus in a medical intensive care unit, Infect. Control Hosp. Epidemiol., 21, 718, 10.1086/501721 Eveillard, 2005, Estimation of methicillin-resistant Staphylococcus aureus cross-transmission by considering colonization pressure at the time of hospital admission, J. Hosp. Infect., 60, 27, 10.1016/j.jhin.2004.10.008 Salgado, 2003, Community-acquired methicillin-resistant Staphylococcus aureus: a meta-analysis of prevalence and risk factors, Clin. Infect. Dis., 36, 131, 10.1086/345436 Lucet, 2003, Prevalence and risk factors for carriage of methicillin-resistant Staphylococcus aureus at admission to the intensive care unit, Arch. Intern. Med., 163, 181, 10.1001/archinte.163.2.181 Eveillard, 2005, Impact of screening for MRSA carriers at hospital admission on risk-adjusted indicators according to the imported MRSA colonization pressure, J. Hosp. Infect., 59, 254, 10.1016/j.jhin.2004.09.028 Coello, 1994, Prospective study of infection, colonization and carriage of methicillin-resistant Staphylococcus aureus in an outbreak affecting 990 patients, Eur. J. Clin. Microbiol. Infect. Dis., 13, 74, 10.1007/BF02026130 Cox, 1995, A major outbreak of methicillin-resistant Staphylococcus aureus caused by a new phage-type (EMRSA-16), J. Hosp. Infect., 29, 87, 10.1016/0195-6701(95)90191-4