Three large studies published this Friday by the United States Centers for Control and Prevention (CDC) confirm that the best protection against the variant omicron of the coronavirus is the booster dose of the vaccines against COVID-19.
According to one such analysis, which sampled nearly 88,000 hospitalized patients in 10 states, the booster dose was 90% effective in preventing hospital admissions in December and January, months in which omicron has become prevalent in the United States.
Given these data, receiving two doses of the vaccine was 57% effective six months after receiving the second.
In addition, the booster vaccine was 82% effective in preventing visits to the ER, compared to 38% in those who had received two doses and had spent six months after the second, indicates the study, which reviewed more than 200,000 tours in ten states.
The other CDC study concluded that people who have received three doses are less likely to get omicron.
CDC researchers found with this analysis, done with data from 25 states and local health departments, that among those who received the booster vaccine, there are 149 weekly cases of COVID-19 per 100,000 people, compared to 255 per 100,000 among those who received two doses.
A third CDC study, cited by CNN and to be published by the medical journal JAMA, showed that the third dose helps prevent people from getting omicron.
The research focused on 13,000 cases of omicron and found that the chance of developing a symptomatic infection is 66% lower for those who have received the third dose compared to those who have only received two.
All three studies have found that the unvaccinated face the greatest risk of contracting COVID-19.
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