Influenza virus surveillance among young children in São Paulo, Brazil: the impact of vaccination

Cabeça, Tatiane KarenWatanabe, AripuanãMoreira, Luciana PenicheMelchior, Thaís BoimPerosa, Ana HelenaCamargo, ClariceParmezan, Sheila NegriniBellei, Nancy

This study assessed the presence of influenza virus among young children and the coverage of vaccination from 2010 to 2012 in São Paulo, Brazil. Our results demonstrated a lower rate of influenza detection and a predominance of influenza B. A decrease of coverage vaccination through the surveillance periods was observed.

1. Influenza virus
2. Vaccination
3. Surveillance