Sailing at the 2016 Summer Olympics in Rio de Janeiro was held from 8–18 August at Marina da Gloria in Guanabara Bay.

[3][4][5] World Sailing examined various options including holding the racing fully outside the bay or even moving the event to Buzios.

[7] The German sailor Erik Heil was also infected by multi-resistant germs during an Olympic test event in Rio.

[8] The location for sailing events was a source of concern for athletes since scientists had found drug-resistant super bacteria in Guanabara Bay due to the daily dumping of hospital waste and household raw sewage into the rivers and ocean.

The Brazilian federal government's Oswaldo Cruz Foundation lab also found the genes of super bacteria in a river that empties into Guanabara Bay.