G2P[4] the most prevalent rotavirus genotype in 2007 winter season in an European non-vaccinated population.

Background: Recently, a high prevalence of G2P[4] rotavirus (RV) infection was reported from Brazil, and linked with the universal RV vaccination programme that used the G1P[8] live oral RV vaccine.

Objective: To determine the genotypes of RV co-circulating in a non-vaccinated population, in northern Portugal in the winter season of 2007.

Study Design: Prospective multicenter study of the genotypes circulating in the northwest region of Portugal during January to March 2007.