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Are Covid Shots Working? What the Real World Tells Us
With Covid-19 shots in billions of arms by now, evidence is emerging of how well they work in real-world settings. Vaccines authorized for emergency use have successfully subdued epidemics in nations where at least half of the population is fully immunized. But as more-transmissible variants spread, driving fresh outbreaks and an increase in breakthrough infections, health authorities are recommending some immunized individuals wear face-masks indoors to augment the protection of vaccines.
https://www.washingtonpost.com/business/are-covid-shots-working-what-the-real-world-tells-us/2021/07/30/deb72eae-f121-11eb-81b2-9b7061a582d8_story.html?utm_source=rss&utm_medium=referral&utm_campaign=wp_business
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