Several factors are at play, starting with the emergence of the highly contagious omicron variant. Omicron is more likely to infect people, even if it doesn’t make them seriously ill, and its rise coincides with the holiday travel season in many places.
Louis Mansky, a virologist at the University of Minnesota, says people may mistakenly believe the COVID-19 vaccine will completely prevent infection, but the shots are primarily designed to prevent infection. seriously ill, said Louis Mansky, a virologist at the University of Minnesota.
And vaccines are still doing their job on that front, especially for those who already have boosters.
Two doses of Pfizer-BioNTech or Moderna vaccine or one dose of Johnson & Johnson vaccine still provide strong protection against serious omicron disease. While those initial doses aren’t very good at stopping omicron infections, boosters — especially with the Pfizer and Moderna vaccines — increase levels of antibodies to help fight the infection.
Omicron seems to reproduce much more efficiently than previous variants. And if infected people have a high viral load, they are more likely to pass it on to others, especially unvaccinated people. Vaccinated people who contract the virus are more likely to have mild symptoms, if any, because the shots trigger multiple waves of defenses in your immune system, making it difficult for the omicrons to overcome them all.
Tips for staying safe haven’t changed. Doctors said it is necessary to wear masks indoors, avoid crowds and vaccinate, to promote health. While the shots don’t always keep you from getting the virus, they do make you more likely to survive and not have to go to the hospital.
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https://abc13.com/why-are-vaccinated-people-getting-covid-19-covid-vaccination-vaccine-omicron-variant/11423319/ Omicron variant: Why are so many vaccinated people infected with COVID-19 lately?