estimates for the United States. Norovirus causes an av- erage of 570â800 deaths, 56,000â71,000 hospitalizations,. 400,000 emergency department visits, ...
PERSPECTIVE
Norovirus Disease in the United States Aron J. Hall, Ben A. Lopman, Daniel C. Payne, Manish M. Patel, Paul A. Gastañaduy, Jan Vinjé, and Umesh D. Parashar
Although recognized as the leading cause of epidemic acute gastroenteritis across all age groups, norovirus has remained poorly characterized with respect to its endemic disease incidence. Use of different methods, including attributable proportion extrapolation, population-based surveillance, and indirect modeling, in several recent studies has considerably improved norovirus disease incidence estimates for the United States. Norovirus causes an average of 570–800 deaths, 56,000–71,000 hospitalizations, 400,000 emergency department visits, 1.7–1.9 million outpatient visits, and 19–21 million total illnesses per year. Persons >65 years of age are at greatest risk for norovirusassociated death, and children
