When was your last COVID-19 shot and how much immunity do you still have?
Researchers are working on a new generation antibody test that would give a more precise measure of the level of neutralizing antibodies an individual has, possibly allowing people to better understand their current level of protection against the virus.
But as has been the case for most things related to COVID-19, research for the tests is complicated. Read more from Karen Weintraub here.
It's Thursday, and this is Coronavirus Watch from the USA TODAY Network. Here's more news to know:
First lady Jill Biden, 71, tested positive for COVID-19 on Tuesday and is experiencing cold-like symptoms, according to The White House, nine days after the president ended his isolation following a re-infection of COVID.
Major changes to the CDC were announced Wednesday to make the centers more nimble, including internal staffing moves and steps to speed up data releases.
Pfizer's CEO Albert Bourla announced he tested positive for COVID-19 on Monday and is experiencing "very mild symptoms."
See our COVID-19 resource guide here. See total reported cases and deaths here. On vaccinations: About 79% of people in the U.S. have received at least one vaccine shot, and about 67% are fully vaccinated, according to the CDC.
– Cady Stanton, USA TODAY breaking news reporter, @cady_stanton
This article originally appeared on USA TODAY: Coronavirus Watch: A push for more specific COVID antibody tests