The Rio Olympics are fast approaching and there have been almost no stories about any positive aspect of the upcoming Olympics. To change that trend this story is about how positive the swimmers at the Olympics will be tested for viruses after they go for a paddle.

Water tested in the area has been found to have large concentrations of rotaviruses that can cause mild things like vomiting and diarrhea. Scarily there are even drug-resistant “superbacteria” that could kill someone with a weak immune system.

Upscale beaches like Ipanema and Leblon which are expected to draw a lot of Olympic spectators are also heavily contaminated. Sewage levels are disgustingly high, even by Rio’s lax standards. If you really feel the need to go swimming, keep your head above the water while you’re there.

Rio has promised for decades to turn this pollution problem around, but now that they’re on the world stage, it isn’t hard to see that nothing has been done. Photographic evidence also indicates that fish come to Brazil exclusively to die in large numbers.

“Foreign athletes will literally be swimming in human crap, and they risk getting sick from all those microorganisms,” said Dr. Daniel Becker, a local pediatrician told NY  Times.

A survey done by the Associated Press last year shows viral levels at up to 1.7 million times the level that would be considered “worrisome” in the US. At this level athletes would only need to ingest three teaspoons of water to develop illnesses that could include “stomach and respiratory illnesses and more rarely heart and brain inflammation”.

So what sort of measures are the world’s top Olympians going to take? “We just have to keep our mouths closed when the water sprays up,” said Afrodite Zegers, a member of the Dutch sailing team.