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How well do the Moderna vaccine and booster protect against omicron? Seek medical attention right away if the vaccine recipient has any of the following symptoms: Seek medical attention right away if the vaccine recipient has any of the following symptoms after receiving the vaccine, particularly during the 2 weeks after receiving a vaccine dose: Fainting can happen after getting injectable vaccines, including Pfizer-BioNTech COVID-19 Vaccine or COMIRNATY (COVID-19 Vaccine, mRNA). Demonstration of superiority against Omicron and safety are regulatory requirements for potential emergency use authorization of a variant-adapted vaccine. They also provide some protection against Omicron, but not as much as the updated boosters. Unfortunately for the flu shot, you never know the best time to get vaccinated until after flu season, he says. Only 28 per cent of children aged five to 11 have 'minimum protection' against the disease, according to the city state's Health Ministry, as weekly Covid case numbers top 27,000. Pfizer's COVID-19 booster appears to protect against the Omicron variant for at least four months, according to a new preprint study. The monovalent Omicron-adapted vaccine 30 g and 60 g achieved a lower bound 95% confidence interval for GMR of >1.5, consistent with the regulatory requirement of super superiority. Which one should you get? Therefore, Hafiz said that the updated bivalent vaccine "should offer greater immunity [against XBB.1.5] than the original vaccination.. Pfizer said preliminary lab studies showed that both the updated shots also provided protection against BA.4 and BA.5, the Omicron subvariants that are spreading in the U.S. and expected to become . In the real-world CDC data, researchers show that the bivalent booster is reducing COVID-19 among those who receive it, and that protection from disease against the newest variants is similar to that against the BA.5 variant. "Could we get to the point where public health officials recommend a shot once a year," Bhattacharya says. Omicron Variants BQ.1 and BQ.1.1 Are Now Dominant in U.S. How Many Times Can You Get Reinfected With the Same COVID Variant? Centers for Disease Control and Prevention. Sylke Maas, Ph.D. Pfizer Says Updated Vaccines Boost Protection Against Omicron - WebMD