South Africa suspends plans to vaccinate health care workers with the AstraZeneca vaccine over questions about whether it works to prevent mild to moderate illness from the dominant variant in the country. What does this mean for the rest of us?

The U.K. variant will soon dominate the U.S.

Is focusing on the second dose better when it comes to vaccine distribution?

Can you throw parties and trash your masks once fully vaccinated? Maybe not.

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