 | From the Editor's Desk
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.
1. How good are Covid vaccines?
In general, the Covid shots are extremely good, though not perfect, at protecting against hospitalization and death. Researchers in Taiwan found that a 10% increase in vaccine coverage is associated with a 7.6% reduction in the case fatality ratio.
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