Diseases, Conditions, Syndromes

World's virus toll tops 60,000 as advice on masks shifts

The global death toll in the coronavirus crisis soared past 60,000 on Saturday, as US calls for the public to cover their faces reignited debate about whether masks can be effective in stemming the pandemic.

Diseases, Conditions, Syndromes

Virus enigma: Experts ask why Africa seems to have few cases

The coronavirus is spreading fast beyond its China birthplace but sub-Saharan Africa, one of the world's most vulnerable regions, has so far been almost spared—and experts want to know why.

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