After an investigation by The Associated Press concluded the waters of Rio were contaminated, the World Health Organization (WHO) wants the International Olympics Committee (IOC) to conduct a virus test. 

The Associated Press reported the World Health Organization wants the IOC to closely monitor for viruses at Olympic venues. In a statement, WHO said, "WHO has also advised the IOC to widen the scientific base of indicators to include viruses. The risk assessment should be revised accordingly, pending the results of further analysis. The Rio Local Organizing Committee and the IOC are requested to follow WHO recommendations on treatment of household and hospital waste." 

The 2016 Summer Olympic Games will be in Rio de Janeiro and the water surrounding the venues contains a high level of bacteria and viruses. Athletes from all across the world will be exposed to the elements and could get sick from the water, possibly knocking them out of the Olympics. 

The spokesman for the International Olympic Committee, Mark Adams, said the athletes' safety is the No. 1 priority.

"The health and welfare of the athletes is a top priority for the IOC," Adams said. "The Rio authorities are following WHO testing standards and, according to the WHO, there is no significant risk to athletes." 

The International Sailing Federation informed the AP it will be doing its own virus tests in the coming days.

One of the sailing venues, the Guanabara Bay, is badly polluted. The bay consists of raw sewage and pollution. Other venues, such as parts of Copacabana Beach, also have dangerously high levels of viruses. In Rio, most of the waste and sewage goes untreated and usually runs downhill in ditches and streams, affecting the water supply.  

The 2016 Olympic Summer Games will start on Aug. 5, 2016. The Olympics was awarded to Rio in 2009, and Rio promised to clean up the water surrounding the city. Rio de Janeiro Mayor Eduardo Paes now says this will not happen. 

Costa Rican triathlete Leonardo Chacon said he is aware of the problem and knows the risks but will still participate in the games.

"We know we are exposed to viruses, maybe to a health problem later," Chacon said. "But in my case, I have invested so much to prepare myself for this, and I want this to happen because I can't recuperate this investment any other way other than competing and winning the points that I need to win."