May 2020. (Andre Coelho/Getty) | |
The pandemic’s true death tollOn 1 November, the global death toll from the COVID-19 pandemic passed five million, official data suggested. It has now reached 5.5 million. But that figure is a significant underestimate. Records of excess mortality — a metric that compares all deaths recorded with those expected to occur — show that many more people have died in the pandemic. Working out how many more is a complex research challenge. Some official data are flawed, and more than 100 countries do not collect reliable statistics on deaths at all. Efforts to correct the record use methods including satellite images of cemeteries, door-to-door surveys and machine-learning computer models that extrapolate estimates from available data. |
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