Doubts were growing on Thursday over whether ambitious plans by European governments to use contact-tracing apps to fight the spread of the coronavirus will be able to be implemented with any real effectiveness soon.
In contrast, there appeared to be some movement forward in the sprint to find a vaccine against COVID-19, bolstered by a $1 billion investment from the U.S.
vaccine agency. British Prime Minister Boris Johnson pledged Wednesday to have a “test, track and trace” program for COVID-19 in place by June 1 as part of a strategy to persuade the country that it’s safe to move on to the next stage of easing the lockdown and restarting the economy.