https://www.si.com/olympics/2016/02/09/zika-virus-rio-2016-olympics-health-risks
Zika drew global attention ahead of the Rio Olympics, but it wasn’t the biggest health risk athletes faced. Dengue, influenza, and other infections posed far greater threats to performance, especially in a setting that brought together massive crowds from around the world. Smart preparation and realistic risk assessment, not panic, were the keys to staying safe.