Harj Taggar Retweeted Nicholas A. Christakis
I learned from this thread that in addition to testing if people currently have COVID19 (rna test), we also need to test if you've ever had it (serological test) so we can track how long immunity lasts and what the true infection -> death rate is.https://twitter.com/NAChristakis/status/1240689935557865472 …
Harj Taggar added,
10:41 AM - 19 Mar 2020
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