Rotsaert, C.

noroviru outbreak resident disease mortality norovirus disease hc building institution risk factors lourde statin building infection netherland cohort outbreak period gastroenteriti death factor score patient period study pilgrimage journal strain norovirus outbreak signi analysis investigation retrospective cohort study epidemiology virus sample october symptom health 30 september smoking norovirus case norovirus outbreaks september medication control november death certi ficates fi ndings onset laboratory diuretic pilgrim diseases 2008 hospital addition table norovirus infection microbiology virology order model finition barthel outcome rondy multivariate cause index speci misclassi fication healthcare diagnosis pcr assay 24 oct microbiology 2004 cc scores figure 2 b 72- h period 19 oct 3 november 2008. sequence