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Antibody Tests Point To Lower Death Rate For The Coronavirus Than First Thought

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Mounting evidence suggests the coronavirus is more common and less deadly than it first appeared.
The evidence comes from tests that detect antibodies to the coronavirus in a person’s blood rather than the virus itself.
The tests are finding large numbers of people in the U.S. who were infected but never became seriously ill. And when these mild infections are included in coronavirus statistics, the virus appears less dangerous.
“The current best estimates for the infection fatality risk are between 0.5% and 1%,” says Caitlin Rivers, an epidemiologist at the Johns Hopkins Center for Health Security.
That’s in contrast with death rates of 5% or more based on calculations that included only people who got sick enough to be diagnosed with tests that detect the presence of virus in a person’s body.
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