The U.S. is set to vaccinate 100 million Americans fully by the end of this weekend, according to the Centers for Disease Control and Prevention.
Even as more Americans receive the vaccine, coronavirus cases are soaring in countries like India and Costa Rica.
The U.S. has pledged $100 million in COVID-19 aid to India.
There have now been at least 150 million coronavirus cases worldwide, according to Johns Hopkins University data.
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