vaccines and booster doses offer the best protection against Delta and Omicron do coronavirus, according to new studies released this Friday, the 21st, by the Centers for Disease Control and Prevention (CDC, its acronym in English) of U.S.
In one of the studies, a CDC analysis found that a third dose of the vaccine Pfizer with BioNTech or give Modern was at least 90% effective against the prevention of hospitalizations for covid-19 during the periods of dominance of Delta and Ômicron.
During the Delta wave, vaccine efficacy against hospitalizations was 90% from two weeks to about 6 months after the second dose; 81% from six months after the second injection; and 94% at least two weeks after a booster dose.
When Ômicron was dominant, the vaccine efficacy against hospitalizations for the same periods was 81%, 57% and 90%, respectively.
The CDC has stated that vaccination is the safest way to acquire immunity against the virus because contracting the disease carries the danger of serious infection or death, even among people at the lowest risk.
Another study published in the journal Nature on Thursday showed that a third dose of Pfizer’s vaccine neutralizes Omicron, but that a two-dose regimen is significantly less effective at blocking the virus.
According to the study, two doses provided little neutralizing antibody immunity against Omicron infection even one month after vaccination, but a third dose offered more than 50% protection against Covid-19.
Source From: Moneytimes
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