Three of four children in America have had COVID-19, along with over six in 10 young adults, according to new estimates.
Research from the Centers for Disease Control and Prevention (CDC) found that only a quarter of children 17 and younger have no signs of having had COVID-19.
The research, which analyzed blood samples submitted for testing, estimated large jumps in seroprevalence, or signs of past infection, a state also known as natural immunity because of the protection one enjoys against reinfection and severe illness.
In children, seroprevalence rose from 44 percent in December 2021 to 75 percent in February 2022. Among adults aged 18 to 48, it increased from 36.5 percent to 64 percent; among those aged 50 to 64, it rose from 30 percent to 50 percent, and among those 65 or older, it rose from 19 percent to 33 percent.
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