6GAUCI C,GTTJ.ES H,0 BRIEN S,et al. Challenges in i-dentifying the methodology to estimate the prevalence ofinfectious intestinal disease in Malta [ J] . Epidemiol In-fect, 2006,134 ( 2 ) :393.
7Cumberland P, Sethi D,Roderick P J, ei al. The infec-tious intestinal disease study of England : a prospective e-valuation of symptoms and health care use after an acuteepisode [J] . Epidemiol Infect, 2003 ,130 ( 3 ) :453.
8PHILLIPS G,TAM C C,CONTI S,et al. Community in-cidence of norovirus - associated infectious intestinal dis-ease in England : improved estimates using viral load fornorovirus diagnosis[ J]. Am J Epidemiol,2010,171(9):1014.
