| delayed onset and diminished magnitude of rotavirus activity--united states, november 2007-may 2008. | rotavirus is the leading cause of severe acute gastroenteritis among infants and young children, accounting for an estimated 527,000 deaths among children aged <5 years worldwide in 2004 (1,2). in the united states, rotavirus causes few deaths (20-60) each year, but remains a substantial cause of morbidity among children, resulting in approximately 55,000--70,000 hospitalizations, 205,000-272,000 emergency department (ed) visits, and 410,000 physician office visits. in the continental united sta ... | 2008 | 18583958 |