Thread by @EricTopol

With the recent approval of an antigen test, there are now 3 categories of #SARCoV2 testing. This is a very good infographic in today's @sdut
by @JonathanWosen @ms_gilchrist

Instead of the usual Test, Test, Test
the @washingtonpost highlights it 624 times with outstanding essays by @fotoole @IrishTimes and @ATabarrok @pujalight
"Our Only Hope"
washingtonpost.com/outlook/covid-…
washingtonpost.com/outlook/we-cou…
There's even more to this story

What if there was a saliva test which accurately detected transmissibility w/ a 1-minute turnaround?
I discussed this a bit @scifri this week:
sciencefriday.com/segments/home-…
And it helped to guide reopening at stores, restaurants, shopping malls & the workplace
3/x

Companies and airports are now relying on thermal cameras
washingtonpost.com/technology/202… by @drewharwell
which are really unhelpful, have never been validated to prevent spread.
Many people w/ #COVID19 never have a fever.
Pre-symptomatic spread occurs
It's like a placebo test.
4/x

The false-negative tests may not be "false" if they're actually giving a true read out for likelihood of transmission.
That is, if the tests are not really dichotomous but a proxy for viral load. It's path worth pursuing w/ careful study.
acpjournals.org/doi/10.7326/M2… @AnnalsofIM