Risk of travelers to Olympics sparking new Zika outbreaks low
Just 4 of 206 countries vulnerable, CDC says
![Rio de Janeiro](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/07/071316_MR_zika_olympics_feat.jpg?fit=860%2C460&ssl=1)
GAME ON For most countries, travel to the Olympics in Rio de Janeiro doesn’t greatly boost the risk of local Zika transmission.
lazyllama/Shutterstock.com