Rio's Contaminated Water: 7 Infections People Could Get at the Olympics

The coastal waters around Rio de Janeiro, where many Olympic water competitions will soon take place, are reportedly teeming with harmful viruses and bacteria. "There are many types of microbes in raw sewage that have the potential to cause human disease," said Stephen Morse, a professor of epidemiology at Columbia University Mailman School of Public Health in New York City. A study of Rio's beaches commissioned by the Associated Press found much higher levels of viruses and markers for bac