Oh my goodness -- the US administration is thrashing?
What a surprise. Trump's first response was to deny that there is danger, next to minimize it (not as bad as influenza? COVID-19 has about 10 times influenza's fatality rate), then to blame somebody else (Obama, he said? the regulatory process for vaccines which Trump complained about has been in effect since 1997 and had nothing to do with Obama), and now to cloak his administration's response in secrecy -- as classified information.
There's been no noticeable, large-scale action by the Feds. They're thrashing, which is a very poor way to respond to any looming crisis.
But Facebook, Twitter, and Google could make a start by aggressively knocking out misinformation in their respective bailiwicks -- no, drinking bleach will not help; Jim Bakker's silver colloid is completely ineffectual; yes, the virus is spreading; and no, it is not "a common cold" (as Limbaugh said); yes, sanitizing wipes kill the virus as long as they're at least 60% alcohol; no, closing borders at this point will not help. Etc.
My guess: Zero effective action from the Zuckerman. Near-zero from Twitter. Possibly some window-dressing from Google, ie, notifications on the search page... but no modification of the search algorithm to block or warn about crap-and-scam coronavirus disinformation.
I'm not sure what "big tech" can do other than work on a vaccine and on anti-viral treatments. Tracking the outbreak using genetics is flashy and cool, but it's tracking, not preventing or curing or even ameliorating symptoms.
Gonzalo Raposo is quoted: "If big tech gains access to medical data and patterns, they can support containment efforts by quickly pinpointing the source of illness within vulnerable communities."
Riiiiiight. The US doesn't have the physical capacity to do extensive testing for the virus right now. By the time enough test supplies are manufactured and distributed -- say a month -- the horse will have well and truly left the barn and anything big tech can do to "support containment efforts" will be moot. Afterwards, big tech will do a superlative job of retroactive analysis I'm sure.