Sports

'Super bacteria' found in Rio de Janeiro waters where Olympic sailing events are to be held

  • FILE - In this Aug. 3, 2014, file photo, athletes of the Finn class compete during the first test event for the Rio 2016 Olympic Games at the Guanabara Bay in Rio de Janeiro, Brazil. A drug-resistant “super bacteria” that’s normally found in hospitals and is notoriously difficult to treat has been discovered in the waters where Rio de Janeiro’s Olympic sailing events will be held, scientists with Brazil’s most respected health research institute said Monday Dec. 15, 2014. (AP Photo/Felipe Dana, File)

    FILE - In this Aug. 3, 2014, file photo, athletes of the Finn class compete during the first test event for the Rio 2016 Olympic Games at the Guanabara Bay in Rio de Janeiro, Brazil. A drug-resistant “super bacteria” that’s normally found in hospitals and is notoriously difficult to treat has been discovered in the waters where Rio de Janeiro’s Olympic sailing events will be held, scientists with Brazil’s most respected health research institute said Monday Dec. 15, 2014. (AP Photo/Felipe Dana, File)  (The Associated Press)

  • FILE - In this Nov. 19, 2013 file photo, small boats sit on the polluted shore of Guanabara Bay in the suburb of Sao Goncalo, across the bay from Rio de Janeiro, Brazil. A drug-resistant “super bacteria” that’s normally found in hospitals and is notoriously difficult to treat has been discovered in the waters where Rio de Janeiro’s Olympic sailing events will be held, scientists with Brazil’s most respected health research institute said Monday, Dec. 15, 2014. (AP Photo/Felipe Dana, File)

    FILE - In this Nov. 19, 2013 file photo, small boats sit on the polluted shore of Guanabara Bay in the suburb of Sao Goncalo, across the bay from Rio de Janeiro, Brazil. A drug-resistant “super bacteria” that’s normally found in hospitals and is notoriously difficult to treat has been discovered in the waters where Rio de Janeiro’s Olympic sailing events will be held, scientists with Brazil’s most respected health research institute said Monday, Dec. 15, 2014. (AP Photo/Felipe Dana, File)  (The Associated Press)

Scientists with Brazil's most respected health research institute say they've discovered a drug-resistant "super bacteria" in waters where Olympic sailing events will be held.

The Instituto Oswaldo Cruz says that in samples taken from various spots along the Carioca River it has discovered bacteria that produce an enzyme making them resistant to most forms of treatment. Among the spots is where the river flows into Rio's Guanabara Bay, site of the 2016 sailing events.

Bacteria with the so-called KPC enzyme are generally found in hospitals and are notoriously difficult to treat.

In a statement Monday, the institute said no instances of infection resulting from the contaminated water have yet been detected but warned of possible danger to swimmers.

Brazil has pledged to clean up Guanabara Bay ahead of the Olympics.