Here are the latest developments in the coronavirus crisis: China's Coronavac vaccine was 67 percent effective at preventing symptomatic Covid-19 and 80 percent at preventing death, according to real-life results unveiled from Chile's inoculation campaign. Europe's medicines regulator says it expects to rule on the safety of Johnson & Johnson's coronavirus jab on Tuesday after vaccinations were put on hold in the US and Europe over blood clot fears. Chancellor Angela Merkel receives her first dose of AstraZeneca's Covid-19 vaccine, more than two weeks after German authorities recommended use of the jab only for people aged 60 and over. Thousands of Palestinians stream to Al-Aqsa mosque in Israeli-annexed east Jerusalem on the first Friday of Ramadan, in the largest such gathering since the pandemic. The administration of President Joe Biden announces it will spend $1.7 billion to improve its ability to sequence the coronavirus for genetic changes, as dangerous new variants are poised to dominate the pandemic. Portugal lifts its suspension on flights to and from Britain and Brazil for "essential trips". Italy will ease coronavirus restrictions for schools and restaurants from April 26. Germany removes Britain and Northern Ireland from the list of risk zones for coronavirus infections, meaning that travellers will no longer need to quarantine upon arrival. A third leg of Japan's Olympic torch relay is scrapped and a BMX test event is postponed over rising virus cases and uncertainty about the viability of the Games ahead of their opening in July. At least 2,987,891 people have died of Covid-19 around the world since the outbreak emerged in China in December 2019, according to a tally from official sources compiled by AFP. The United States is the worst-affected country with 565,289 deaths, followed by Brazil with 365,444, Mexico with 211,213, India with 174,308 and Britain with 127,191. burs-eab-jmy/pvh