- STAT NEWS - Andrew Joseph - JAN 19, 2022 -
New data released Wednesday showed that both vaccination and prior infection offered strong protection against infection and hospitalization from Covid-19 during the Delta wave — and that case and hospitalization rates were actually lower among people who had recovered from Covid-19 than among those who had been vaccinated.
The data, released by the Centers for Disease Control and Prevention and health agencies in California and New York, are sure to inflame arguments from those who insist they don’t need to be vaccinated if they can show they’ve recovered from Covid-19. But the data contain many caveats that health officials stressed pointed to the value of vaccination, even on top of prior infection.
For one, the new report was based on data only through November, before the U.S. booster campaign really took off. It also looked at data during the Delta wave and does not account for the surging Omicron variant.
And while research has shown that infection can train the immune system to guard against the coronavirus in different ways than vaccination, Covid-19 also has killed more than 850,000 people in this country, sickened — often severely — millions more, and caused untold cases of long Covid. Serious side effects from the Covid-19 vaccines are extremely rare.
“We know that vaccination remains the safest strategy for protecting against Covid-19,” Benjamin Silk, a CDC epidemiologist, told reporters Wednesday.
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