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Re:Why doesn’t natural immunity count in the US? by walterbell on Tuesday September 14, 2021 @06:57PM (#28532651)
> apparently not reliable in the US

Which T-cell test(s) are you referencing? What are the rates of false negatives or false positives?

Re:Why doesn’t natural immunity count in the US? by isolli on Wednesday September 15, 2021 @03:45AM (#28536388)
Good question. I wrote "apparently" because I don't know much about T-cell tests. I would be happy for any information on the topic.