CNN CNN Newsroom With Poppy Harlow and Jim Sciutto November 29, 2021 14:11:00
The other thing to see what's happening in the real world. in south africa, where some people are vaccinated and now that the virus is finding its way into other countries, can we start to see what the effectiveness is of the vaccine in preventing illness and severe illnessness. that will take us a week or two to begin to see. there's more data from both of those directions. >> okay. a key question here, the world health organization says early data suggests there may be increased risk of reinfection for those already vaccinated. what can we say, do we know about the protection offered from pr...
Source: archive.org