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Harris Lapiroff

I have covid this week and I've been (purposely) using expired antigen tests to track it. The way antigen tests age is a gradual decrease in sensitivity[^1]. A strong signal may become weak; a weak signal may drop out entirely.

I already knew I had covid; I had a known exposure and symptoms, then tested positive two days later. I had a stockpile of expired Quidel QuickVue tests], so I figured it would make an efficient use of resources to use them to track my infection.

chromamine.com/2023/11/using-e

chromamine.comUsing Expired Covid Antigen Tests
Nov 22, 2023, 11:45 PM·Public
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