How to catch a Covid patient, Sherlock-style

Remote heat maps, phone tracking, crowdsourcing apps and spying neighbours have all been pressed to the task. States have to create three categories — one of Covid-19 positive patients, a second list of suspected cases that need to be quarantined and a third of people who can be kept in home-isolation with strict restrictions. It is the last that is giving sleepless nights to authorities.

from News-Economic Times https://ift.tt/3arEcGF