Found this article to be of interest. It’s long but goes into the questions the experts studying Covid have...
Several brought up better ways to gauge immune response and protection. From the article:
“Florian Krammer, a professor of vaccinology at the Icahn School of Medicine at Mount Sinai Hospital in New York, submitted only one question and it was very specific: He wants to know the exact measurements of antibodies needed to fend off asymptomatic Covid and symptomatic disease. “I guess you could say that I want to know which type of immune response indicates protection,” said Krammer. “
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