Home » BBC News - Technology » technology news » Coronavirus: What is contact tracing and how does it work? Coronavirus: What is contact tracing and how does it work? Unknown 4:51 PM BBC News - Technology technology news When lockdown ends, contact tracing could help limit the spread of coronavirus. from BBC News - Technology https://ift.tt/2zqUeD2 Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati