COVID Variants May Emerge That Are Not Covered By Vaccine, Scientists Warn By Steve BaragonaMay 09, 2021 05:45 AM In a rare yet expected development, a small number of people have developed COVID-19 after they have been vaccinated. “Nothing is 100% in this world,” said Gigi Gronvall, a senior scholar at the Johns Hopkins Center forContinue reading “Did you think the COVID vaccine is 100% effective?”
