CDC charts show how much 2 and 3 doses of COVID vaccine protect from hospitalization

New charts from the Centers for Disease Control and Prevention show that the rate of hospitalizations for people who werevaccinated was much lower than for people who weren't.

The rate of hospitalizations for unvaccinated adults rose sharply as Omicron spread in the US, while the rate for fully vaccineed adults remained low.

One dose of the J&J vaccine or two doses of Pfizer or Moderna were included in the fully-vaccinated chart.

age-adjusted rates of COVID-19-associated hospitalization rates per 100,000 population in adults over 18 as January to December 2021, per CDC.
Annotated graph of hospitalization rates per 100,000 among those over 18 as of December 25, 2021.
CDC/Insider

In December, the unvaccinated hospitalization rates were 16 times higher according to the CDC.

For people who were not the primary reason for admission, the statistics are for COVID-associated hospitalizations.

The rate of unvaccinated people was 78 per 100,000, compared to 4 per 100,000 for fully-vaccinated people, according to the CDC.

It is not clear which variant was associated with these hospitalizations. Delta is thought to cause more severe disease and more hospitalizations than Omicron, according to Our World in Data.

The data about boosters was only available to people over 50. Boosters reduced the risk of hospitalization.

Rates of COVID-19 associated hospitalization for those 50 to 64 by vaccination status from November to December 2021.
Annotated CDC chart of COVID-19-associated hospitalization rates per 100,000, as of December 25, 2021.
CDC/Insider
Rates of COVID-19 associated hospitalization per 100,000 in those aged 65 and over from October to December, 2021.
Annotated CDC chart of COVID-19-associated hospitalization rates per 100,000, as of December 25, 2021.
CDC/Insider

The data is here.

  • 50 to 64 fully vaccinated: hospitalization rates were 18 times lower compared to unvaccinated in December overall. On the week of December 25, the rate of COVID-19-associated hospitalizations per 100,000  among unvaccinated was 72 versus 8.8 per 100,000 among the fully vaccinated.
  • 50 to 64, boosted: 46 times lower among those who got a booster in December overall, with a rate of 2.2 per 100,000 among boosted on the week of December 25. 
  • 65 and over, fully vaccinated: 18 times lower than unvaccinated in December overall. On the week of December 25, the rate was 238.7 per 100,000 among the unvaccinated, versus 26.8 per 100,000 among the fully vaccinated.
  • 65 and over, boosted: 52 times lower than unvaccinated in December overall, with a rate of 4.8 per 100,000 on the week of December 25. 

The data should be taken with a grain of salt.

Mark Jit, professor of vaccine epidemiology at the London School of Hygiene and Tropical Medicine told Insider that they don't account for non-vaccine-related risks.

Jit said that people who get vaccinations may be more cautious about COVID in general, or that they may live in states with less COVID risk.

According to the UK Health Safety Agency, protection from a third dose of Pfizer or Moderna vaccine against hospitalization with Omicron was about 89%, waning slightly to 83% at 10 weeks.

The UKHSA said that the protection against Omicron hospitalization after the second dose was 70%.