Coronavirus live news: US confirms 1m cases in a week; Boris Johnson self-isolating

UK PM has no symptoms but has been confirmed as contact of positive case; Global cases rise by 4m in one week and deaths by nearly 60,000

12.30am GMT

The race for a vaccine continues, as does the effort to establish a logistics chain to get it to people all over the world. The head of drug-maker Sanofi says: “we will need to have several winners at the end of this race”.

AFP reports:

12.13am GMT

Some more detail here on the extraordinary news in the UK, that the prime minister Boris Johnson is back in isolation after potentially being exposed to Covid-19 again. Political editor Heather Stewart writes:

Boris Johnson was forced into self-isolation on Sunday night just as he embarked on a crucial week designed to restore calm and project an air of competence after a vicious No 10 turf war.

Continue reading…UK PM has no symptoms but has been confirmed as contact of positive case; Global cases rise by 4m in one week and deaths by nearly 60,000 Boris Johnson told to isolate after contact with Covid-positive MPCovid vaccine hopes must not make Britons complacent, warns adviserCovid vaccine rally fuels market optimism of a faster global recovery 12.30am GMTThe race for a vaccine continues, as does the effort to establish a logistics chain to get it to people all over the world. The head of drug-maker Sanofi says: “we will need to have several winners at the end of this race”.AFP reports: 12.13am GMTSome more detail here on the extraordinary news in the UK, that the prime minister Boris Johnson is back in isolation after potentially being exposed to Covid-19 again. Political editor Heather Stewart writes:Boris Johnson was forced into self-isolation on Sunday night just as he embarked on a crucial week designed to restore calm and project an air of competence after a vicious No 10 turf war. Related: Boris Johnson forced to self-isolate again as crucial week begins Continue reading…