Why is coronavirus mortality rate different for countries?
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Why is coronavirus mortality rate different for countries?

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NEW DELHI: The mortality rate is one of the effective ways of measuring the extent of damage caused by the novel coronavirus pandemic.
The mortality rate is defined as — number of deaths divided by the number of confirmed cases.
According to John Hopkins University & Medicine, the difference in mortality rate across the countries could be due to the following reasons —
  • Differences in the number of people tested: Extensive testing ensures better tracking of the virus and thus ensuring there are no unreported deaths from the virus. This lowers the case-fatality ratio.
  • Demographics: If the population has a higher percentage of older people, the mortality rate is likely to be higher.
  • The healthcare system: For example, mortality may rise as hospitals become overwhelmed and have fewer resources.
  • Other factors, many of which remain unknown.

The number of coronavirus deaths is measured against two factors — confirmed cases or a country's/region's population.
We look at the number of deaths per 100 confirmed cases for 20 most-affected countries.

The number of deaths per 100,000 population for the 20 most-affected countries.
Data source: John Hopkins University & Medicine
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