Could be because of the new double mutation variant that was recently identified. ‘Double Mutant’ Covid Variant: Here’s What We Know As Israel Reports Vaccine

Could be because of the new double mutation variant that was recently identified. ‘Double Mutant’ Covid Variant: Here’s What We Know As Israel Reports Vaccine Efficacy Against Variant First Detected In India https://www.forbes.com/sites/siladityaray/2021/04/20/double-mutant-covid-variant-heres-what-we-know-as-israel-reports-vaccine-efficacy-against-variant-first-detected-in-india/ https://www.forbes.com/sites/siladityaray/2021/04/20/double-... Another variant that is reason to be concerned is the one from Tanzania. https://www.bloomberg.com/news/articles/2021-03-26/most-mutated-covid-19-variant-yet-found-in-tanzania-travelers https://www.bloomberg.com/news/articles/2021-03-26/most-muta...