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"Scientists have found dangerous drug-resistant "super bacteria" off beaches in Rio de Janeiro that will host Olympic swimming events and in a lagoon where rowing and canoe athletes will compete when the Games start on Aug. 5.

The findings from two unpublished academic studies seen by Reuters concern Rio's most popular spots for tourists and greatly increase the areas known to be infected by the microbes normally found only in hospitals."
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The super bacteria can cause hard-to-treat urinary, gastrointestinal, pulmonary and bloodstream infections, along with meningitis. The CDC says studies show that these bacteria contribute to death in up to half of patients infected.
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Waste from countless hospitals, in addition to hundreds of thousands of households, pours into storm drains, rivers and streams crisscrossing Rio, allowing the super bacteria to spread outside the city's hospitals in recent years.
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These bacteria are opportunistic microbes that can enter the body, lie dormant, then attack at a later date when a healthy person may fall ill for another reason.
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Super bacteria infect not only humans but also otherwise-harmless bacteria present in the waters, turning them into antibiotic-resistant germs.