In early December, the Delta variant was responsible for most U.S. COVID-19 cases.
Those mistakes are what we call mutations.
Vaccinations and booster shots remain the most effective public health measurements.
The antigen test is looking for the proteins, basically the structure of that virus.
The advantage of at-home tests is that they are fast, Dr. Edwards explained.
You get the results immediately, in 10 to 15 minutes, for example.
professor of medicine at Harvard Medical School
This information isnt exactly groundbreakingmost people know how helpful regular testing can be.
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professor of medicine at Harvard Medical School
