CDC finds majority of Americans have natural immunity against COVID
Infection-induced immunity is what CDC calls natural immunity gained from COVID infection
A new CDC study shows that the record number of infections during the Omicron wave gave many Americans infection-induced immunity. Between December 2021 and February 2022, the estimated percentage of the U.S. population with infection-induced antibodies increased from 34% to 58% across all age groups. The largest increases were in children and adolescents (see figure below).
Here are the details from the CDC report:
During December 2021–February 2022, overall U.S. seroprevalence increased from 33.5% (95% CI = 33.1–34.0) to 57.7% (95% CI = 57.1–58.3).
Over the same period, seroprevalence increased from 44.2% (95% CI = 42.8–45.8) to 75.2% (95% CI = 73.6–76.8) among children aged 0–11 years and from 45.6% (95% CI = 44.4–46.9) to 74.2% (95% CI = 72.8–75.5) among persons aged 12–17 years. [Note the very high levels reached for children.]
Seroprevalence increased from 36.5% (95% CI = 35.7–37.4) to 63.7% (95% CI = 62.5–64.8) among adults aged 18–49 years, 28.8% (95% CI = 27.9–29.8) to 49.8% (95% CI = 48.5–51.3) among those aged 50–64 years, and from 19.1% (95% CI = 18.4–19.8) to 33.2% (95% CI = 32.2–34.3) among those aged ≥65 years.
Look at the figure below to more clearly see how the natural immunity increased for different age groups
Never too late to read my book.
This is very good news.
Bearing in mind the average crook diet and the stress involved, these are most encouraging and convincing results. Thankyou.