Biden Revaccinated for COVID-19
U.S. President Joe Biden received his third coronavirus vaccination, becoming one of the first Americans to be revaccinated.
Read MoreU.S. President Joe Biden received his third coronavirus vaccination, becoming one of the first Americans to be revaccinated.
Read MoreThe number of coronavirus vaccinations worldwide has surpassed 6 billion, more than half of which come from three countries-China (2.18 billion), India (0.84 billion) and the United States (0.4 billion)-according to calculations based on official statements by authorities and media statistics.
Read MoreThe spread of COVID-19 in the United States could have begun as early as September 2019, earlier than in China, according to a study by Chinese scientists published on the scientific portal ChinaXiv.
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