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'We need to know origin of Covid-19 to prevent future outbreaks': WHO chief
Brazil has to be "very, very serious" in face of rising Covid cases and deaths, calls the trend "very, very worrisome".Brazil registered 24,468 new cases and 272 more deaths on Sunday, bringing its national caseload to 6,314,740 and death toll to 172,833, the Health Ministry said.When asked about upcoming ski season in Europe, WHO's top emergency expert Mike Ryan said risk is not skiing itself but airports, buses, ski lifts, apres ski."We would ask that all countries look at ski season and other reasons for mass gatherings very, very carefully," said Ryan."I think it's highly speculative for us to say that the disease did not emerge in China," Ryan said at a virtual briefing in Geneva a couple of days ago after being asked if COVID-19 could