Olympic chiefs to order testing for viruses in Rio's sewage-polluted waters

International Olympic Committee advised by WHO to expand its testing after high counts of viruses linked to human sewage discovered in Olympic waters

The International Olympic Committee said Sunday it will order testing for disease-causing viruses in the sewage-polluted waters where athletes will compete in next year's Rio de Janeiro Games.

Before, the IOC and local Olympic organisers in Rio said they would only test for bacteria in the water, as Brazil and virtually all nations only mandate such testing to determine the safety of recreational waters.