New coronavirus variant could be problematic for vaccines, a second study in two days suggests
New coronavirus variant could be problematic for vaccines, a second study in two days suggests From CNN's Senior Medical Correspondent Elizabeth Cohen As researchers around the world race to see if new coronavirus variants will pose a problem for the vaccines, a second study in two days says a variant from South Africa could possibly do just that. The variant was first spotted in South Africa in October and has now been found in more than a dozen countries. In both studies, the work was done in the lab and not in people, so more research is needed to gauge the true threat of the new variant.