Are the unvaccinated still a danger to the rest of us?
Americans who still aren't fully vaccinated against COVID-19 probably have some immunity from a past infection. They may not be so dangerous anymore.
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Americans who still aren't fully vaccinated against COVID-19 probably have some immunity from a past infection. They may not be so dangerous anymore.
The CDC has long been criticized as too slow to collect and act on new information. That is changing, bringing new complaints.
In a large study, the risk of a breakthrough infection was 10 times lower for people who got a COVID-19 booster shot than for people who hadn't.
In people who got a booster shot, levels of neutralizing antibodies exceeded the peak that followed two doses of COVID-19 vaccine.
In people who got a booster shot, levels of neutralizing antibodies exceeded the peak that followed two doses of COVID-19 vaccine.