China's Sinovac Vaccine Is Rolling Out Around The World. Will It Work?
Research suggests the vaccine prevents disease only 50% of the time. But it could still have a big impact. And many countries are betting on it.
Many countries are betting on a vaccine from China to help them stop the coronavirus — although questions are surfacing about whether it's a smart bet.
The vaccine is made by the Chinese pharmaceutical company Sinovac. This week, Brazil began rolling out its national immunization program after granting emergency use authorization for the vaccine over the weekend. Indonesia and Turkey started their mass vaccinations with Sinovac's vaccine, called CoronaVac, last week.
But there are conflicting reports about just how well the vaccine works.
Nearly two weeks ago, researchers running
