
According to John Hopkins University-based Centers for Systems Science and Engineering (CSSE), the United States is most affected by the disease.
US President Joe Biden on Tuesday announced the purchase of 200 million additional vaccines to prevent corona virus infection.
Vice President Kamala Harris was given the second dose of the corona vaccine at the National Institutes of Health on Tuesday. He was given the first dose of the vaccine on 29 December 2020 at United Medical Center in Washington DC.
In which a Peruvian volunteer was killed during a trial of a Corona vaccine made by China’s Sinopharm Group Company Limited.
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