Wondering if the Vaccine Worked? Get the Right Test, at the Right Time
Scientists generally recommend against antibody testing after vaccination. But for some people, it makes sense. By Apoorva Mandavilli Now that tens of millions [...]
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Getting One Vaccine Is Good. How About Mix-and-Match?
Researchers are exploring the possible benefits of pairing doses from two different Covid-19 vaccines. By Carl Zimmer In January, Britain made a change [...]
AstraZeneca Pauses Vaccine Trial for Safety Review
The company halted late-stage trials of its coronavirus vaccine because of a serious suspected adverse reaction in a participant. By Katherine J. Wu [...]