Watch, at Euronews:
Keep your mouths shut!
That is the advice from health experts to Olympic athletes preparing to compete in the polluted waters of Rio de Janeiro's Guanabara Bay, where drug-resistant super bacteria have been found in abundance.
The opening ceremony for the games is just a week away.
"The idea is that athletes maintain minimum contact with the water. Unfortunately that is how it is," said doctor Daniel Becker, acknowledging that it is not always easy to remember to keep your mouth and eyes closed...