The Delta variant, also referred to as a "double mutant" because it carries two mutations, is 55 per cent more transmissible ...
New Centers for Disease Control and Prevention (CDC) guidelines for fully vaccinated people in light of the delta variant do not include a social distancing recommendation for most people, as cities ...
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Beta Variant
The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...
Brett Sutton says it’s of ‘significant concern’ and it has international authorities worried - but what is the dreaded new ...
A medical worker inoculates an old woman with a dose of COVID-19 vaccine in Neikeng Town in Jinjiang City, southeast China's Fujian Province on Aug. 31, 2021. China is experiencing yet another ...
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