The injected vaccine might protect people from getting terribly sick, but people still might have virus in their nose that could spread to others. Some scientists think they can solve that problem by delivering a vaccine as a nasal spray.

The injected vaccine might protect people from getting terribly sick, but people still might have virus in their nose that could spread to others. Some scientists think they can solve that problem by delivering a vaccine as a nasal spray.https://t.co/zXuKDUJ4rA

— WBEZ (@WBEZ) August 29, 2020