JoeWras
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
- Joined
- Sep 18, 2012
- Messages
- 11,727
The implication to me is that an antibody test taken several months after an infection might not detect anything.
DW's niece is a good example. Niece's husband was exposed through work to a known Covid carrier around March 1. Tests were precious and rare. The known covid carrier got the test only because she was in the highly publicized list of people who attended that conference in Boston.
Niece's husband came down with flu-like symptoms a few days later, and niece got them 2 days after him. Husband mostly struggled with chest symptoms (cough, pressure). Niece migrated more to digestive upset, but still had mild chest issues. Neither got tests because they were unavailable. They quarantined and rode it out.
Fast forward 5 months. Husband tests positive for antibodies. Niece tests negative. The chain of events, include her husband's positive test, nearly guarantees she had it, but she tested negative.