Coronavirus briefs
Japan declared a state of emergency in Tokyo and three other prefectures. Unlike previous restrictions, bars selling alcohol and shopping malls were told to close. Chile will keep its borders closed for another month, even though the number of new covid-19 cases is easing. America’s Centres for Disease Control revised its advice on wearing masks. Fully vaccinated people do not need to wear one outside, it said, except in crowded venues, like sports stadiums. Americans were allowed to receive the one-shot Johnson & Johnson jab again after regulators ended their suspension of the vaccine. They had been investigating claims that it caused blood clots. America said it would donate up to 60m doses of the Astra-Zeneca jab to other countries. The vaccine has not been approved for use in the US . → For our…