“…This correlation was also reported in a study from Belém, a Northern Brazilian city with equatorial climate (Mello & Silva 1992). In studies from the cities of Rio de Janeiro and São Paulo, both located in Southeast Brazil, with a subtropical climate, the RSV outbreaks began in late March or early April, peaking in May and lasting five months , Vieira et al 2001. The peak of RSV infections in these cities cannot be associated with the rainy seasons, which lasts from January through March and from September through November, nor with the coldest months (June, July, August).…”