Rio Olympic organizers are working to clean outdoor water venues with one year to go before the Opening Ceremony.
The scrutiny intensified with last week’s Associated Press report following virus testing at venues.
Triathletes competed in Rio on Sunday, and sailors will have an Olympic test event later this month.
NBC News visited Rio de Janeiro and filed a report on the state of competition sites, including speaking with U.S. sailors who were training at the Guanabara Bay venue.
Triathletes’ reactions to Rio Olympic water venue after test event