But prior infection does not guarantee protection from the virus, officials said, and Americans should still get vaccinated and boosted.
Tag: Disease Rates
-
Most Americans have been infected with the coronavirus at least once, the C.D.C. says.
Blood tests showed a sharp increase in the proportion of people — especially children and adolescents — in the United States who had antibodies indicating past exposure to the virus, the agency said.
-
China’s Covid Lockdowns Stir Memories of a Planned Economy
China is meddling with free enterprise as it hasn’t in decades. The results are familiar to those old enough to remember: scarcity, and the rise of black markets.