Another round of shots — beginning as early as late fall — could not only boost the level of protection against the virus among the vaccinated, but also help curb its spread throughout the population.
As the Delta variant continues to drive a fourth wave of the coronavirus pandemic in the U.S., Biden officials see a booster shot among at least some vaccinated Americans as increasingly likely.The amount of neutralizing antibodies a person has following their first two doses of Pfizer and Moderna's coronavirus vaccines appears to drop over time, which is a very normal thing to happen with vaccines.
Some Biden officials are increasingly convinced that high levels of neutralizing antibodies correlate with a higher degree of protection against illness. They worry that means that as more time passes, vaccinated people may be increasingly vulnerable to mild, moderate or even severe disease, a Biden official told Axios.that Biden administration health officials increasingly think that vulnerable populations will need booster shots.
There's currently no data suggesting that people who have received a shot — even those who were among the first to get vaccinated — are at risk of becoming severely sick if they get a breakthrough infection.
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