Details of the joint approach are still missing. Sharing already discovered fake news is obvious. The American tech companies have independently started tackling fake news around the virus and marking reliable messages.
The White House asked the tech companies last week help in fighting the virus.
Google sister company offers corona screening
Meanwhile, a sister company of Google has started a special site for coronascreening, which is now under limited testing in the state of California.
Microsoft has a Bing for its search engine worldwide overview made of all confirmed corona cases.