What is the specific CDC advice about who should get a booster shot? The omicron variant is also expected to cause more infections in the new year. Also, the delta variant is extremely contagious and it has caused hundreds of thousands of new infections. Research both by the COVID-19 vaccine makers and independent scientists is showing that the mRNA COVID-19 vaccines made by Pfizer and Moderna are waning several months after recipients get their first doses. It’s normal for some vaccines to wane or become slightly less effective over time. An extra dose “boosts” your immune system, sparking better protection against an illness. What is a booster shot?Ī booster shot is an additional dose of a vaccine after a person has received an earlier dose (or two in the case of COVID-19 mRNA vaccines). Now that booster shots have been formally authorized for millions of other Americans, we’re providing answers to your key questions on COVID-19 booster shots. Coloradans should continue to be very cautious and wear masks in crowded indoor spaces. “Vaccine efficacy may diminish over time with the potential risk for increased susceptibility to breakthrough infections.”ĬOVID-19 infections and hospitalizations in Colorado remain very high, prompting Barron and others health experts to urge people to get initial vaccines immediately and booster doses as soon as people if they are eligible.
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Michelle Barron, senior medical director of infection prevention at UCHealth. “We know booster shots play an important role in the fight against COVID-19, and we’re still in the midst of a pandemic,” said Dr. Health experts agree that the best way to end the pandemic as soon as possible is for all eligible unvaccinated people to get their first doses of vaccines as soon as possible. ( Learn more about getting COVID-19 vaccines and booster doses.)īooster shots will help bump up immunities for those who had their vaccines several months ago. He’s eager to encourage everyone to stay healthy and get vaccinated. Mike recently won the Boston Marathon in his age group. Mike and Nannette Wien pose after getting their booster shots at UCHealth University of Colorado Hospital. Booster doses two months after a J & J vaccine or five months after the second dose of Pfizer and six months or longer after two initial doses of Moderna vaccines can jumpstart vaccine efficacy.
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Research shows that COVID-19 vaccines are remarkably effective in preventing hospitalizations and deaths, but the effectiveness of vaccines wanes over time. are recommending COVID-19 vaccines for everyone ages 5 and older and booster doses for people ages 16 and older. For the latest guidance from the CDC on booster shots, click here.)Īs omicron infections continue to increase around the world, health experts in the U.S. now are encouraging everyone ages 16 and older who is eligible for a booster shot to get it as soon as possible.