Lesson #344

Serrana, Brazil has become a test tube city for new vaccine experiment

The sleepy town of Serrana, Brazil was selected as the site for an important vaccine experiment. We know that coronavirus vaccines are effective at preventing symptoms, deaths, and serious cases. But we still don’t know whether vaccinated people can transmit the disease to others. Brazilian and Chinese researches and the residents of Serrana are on a mission to find out. Plus, learn “get in on the action.”