RSV Epidemic Maps (IMAGE) Princeton University Caption RSV infections may become more common in areas such as the northern United States that currently experience outbreaks seasonally or every two years. The top map shows the present-day timing of RSV epidemics in the United States and Mexico. Under climate change (bottom map), epidemics could become more severe in tropical areas due to increased rainfall, while greater humidity in temperate regions could reduce the intensity of single outbreaks as infections become more common throughout the year. Credit Images courtesy of Rachel Baker, Princeton Environmental Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.