Scientists close in on fatality rate
One of the most crucial questions about an emerging infectious disease such as the new coronavirus is how deadly it is — the infection fatality rate (IFR). This is the proportion of infected people who will die as a result, including those who don’t get tested or show symptoms. Now, numerous studies — using a range of methods — estimate that 0.5-1% of people infected with SARS-CoV-2 will die. There are many caveats: the IFR is particularly hard to pin down for COVID-19 because there are many infected people who don’t show symptoms, and many countries are struggling to count all their virus-related deaths.Nature | 7 min read
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