Birth prevalence rates of congenital cytomegalovirus infection among newborns from two diverse brazilian populations - Mussi-Pinhata, Marisa Márcia; Yamamoto, Aparecida Yulie; Silva, Antonio A. M. da; Batista, Rosangela L. F.; Simões, Vanda M. F.; Cardoso, Viviane Cunha; Bettiol, Heloisa; Barbieri, Marco Antonio (Annual Meeting of the Pediatric Academic Societies (PAS), 2011)