Boosted people in Los Angeles had the most protection against Covid-19 infection and hospitalization this winter, new CDC data shows.
A kidney-transplant patient receives a COVID-19 booster shot at Hartford Hospital in Connecticut on August 24, 2021.Boosted people had the best protection against severe disease in Los Angeles this winter, new CDC charts Unvaccinated people had 83 times the hospitalisation rate of boosted people when Delta was spreading. For more stories visit
New data from the Centers for Disease Control and Prevention underscores the divide in protection between Covid-19 booster shots and two vaccine doses.published Tuesday, the CDC found that people who received Covid-19 booster shots following a single dose of Johnson & Johnson's vaccine or two doses of Pfizer or Moderna had greater protection against infection and hospitalisation this winter.
The study looked at adults in Los Angeles County, California, who got Covid-19 from November 2021 to January 2022. In early December, when the Delta variant was still dominant in LA, unvaccinated people had four times the rate of infection and 13 times the rate of hospitalization as fully vaccinated people without boosters. Compared to boosted people, however, unvaccinated people had 12 times the rate of infection and 83 times the rate of hospitalization.
The pattern held in early January, when Omicron represented the overwhelming majority of Covid-19 cases.
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