Serotype variation of group A rotaviruses over nine winter epidemics in southeastern New England

By the use of enzyme immunoassay and RNA electrophoresis, rotavirus serotyping was performed with stool specimens from 605 children. Serotypes 1, 2, 3, and 4 accounted for 63, 9, 9, and 19% of the cases, respectively, with considerable yearly variation. An average of three serotypes cocirculated each year.