Image‘If rapid antigen tests are so good how come other countries aren’t using them’? is a question I get asked a lot. In fact, India authorized these tests months ago. Slovakia tested most of their population using antigen tests. Germany is using them to protect nursing home residents. Lufthansa is trialing rapid antigen tests on special flights. Rapid antigen tests are now beginning to be available more widely in Europe. Here from a twitter thread is a picture of what they look like, it’s just a paper strip inside. You swab your nose (no need for deep cleaning), swirl the swab in a tube with some liquid and then squeeze a few drops of the liquid onto the end of the tester. Results in 15 minutes. They cost about $8 a test.

Why are these tests important? The CDC now says that asymptomatic or pre-symptomatic people account for a majority of infections. Do you get it? How many people without symptoms will get a COVID PCR test, which can be time consuming and expensive? (And how many PCR tests can we run in a timely fashion if people without symptoms get many more tests?) Not that many. Nut many people without symptoms would get a $8 or less, at-home, 15 minute test. And if some of those people discover that they are infectious and self-isolate for a few days we can drive infection rates down.

We should have had an Operation Warp Speed for tests. We still need funding for a mass rollout and, of course, the FDA needs to approve these tests! (Here is Michael Mina in Time fulminating at the FDA holdup.)

By the way, more than 2800 Americans have died of COVID since Pfizer requested an Emergency Use Authorization for their vaccine. The FDA meets Dec. 10.

Addendum: Here’s me explaining why Frequent, Fast, and Cheap is Better than Sensitive and the difference between infected and infectious.

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Rapid Antigen Tests in Europe

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