Johns Hopkins is studying the effects of long-COVID. They need participants who have had COVID as well as those who have never tested positive for it. Someone my wife follows on BlueSky said they needed more people who haven’t had it because that group is the control. If you are interested in the study, here is the link.
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Yup, that’s going to be a hard group to find in sufficient numbers.
DB2
My wife and I are in that demographic so we did the survey.
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I took the survey. I’m a control. Good thing I kept my Covid vaccination cards – vaccinated 6 times so far.
Wendy
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The cards were handy. We’ve had 8 shots. They stopped updating the cards on our last 2 vaccines, but I had the dates in my calendar.