Serology (Antibody) testing gaining momentumExperts say the true number of infections is probably much higher than the official tallies. Even with much more widespread testing now than in the pandemic’s early months, they say, many people who have never experienced symptoms may not have been tested or counted. It would take a coordinated nationwide serology study program to move beyond modeling estimates and have a solid grasp of how many people have actually had the virus, he said. The CDC conducts some serology testing, he said, but not enough to provide a full picture.
“The bottom line is, we don’t know, but we can guess from modeling,” Longini said.
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