Speed of contact tracing system essential to slowing coronavirus spread – study

Coronavirus – Thu May 7, 2020

Contact tracing cannot sufficiently reduce transmission of coronavirus if a person is not tested within three days of developing symptoms, a new study claims.

Researchers said that the R value, which is number of people that a single infected person will go on to infect, can be reduced from 1.2 to 0.8 through contact tracing in the “most optimistic scenario”.