60% Of Americans Have Had COVID At Least Once

The New York Times reports:

By February 2022, nearly 60 percent of the population had been exposed to the coronavirus, almost double the proportion seen in December 2021, according to data released on Tuesday by the Centers for Disease Control and Prevention.

The researchers analyzed blood samples collected from September 2021 to February 2022, looking for antibodies to the virus; then they parsed the data by age, sex and geographic location. The investigators looked specifically for a type of antibody that is produced after infection, but not in people who have merely been vaccinated.

Between September 2021 and December 2021, the prevalence of antibodies in the samples steadily increased by one to two percentage points every four weeks. But it jumped sharply after December, increasing by nearly 25 points by February 2022.

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