Covid-19 Mortality Analyses John Hopkins University of Medicine

Boris Johnson achieves world beating status on both metrics – Owl

coronavirus.jhu.edu /data/mortality

How does mortality differ across countries?

One of the most important ways to measure the burden of COVID-19 is mortality. Countries throughout the world have reported very different case fatality ratios – the number of deaths divided by the number of confirmed cases. Differences in mortality numbers can be caused by:

  • Differences in the number of people tested: With more testing, more people with milder cases are identified. This lowers the case-fatality ratio.
  • Demographics: For example, mortality tends to be higher in older populations.
  • Characteristics of the healthcare system: For example, mortality may rise as hospitals become overwhelmed and have fewer resources.
  • Other factors, many of which remain unknown.

This page was last updated on Friday, July 10, 2020 at 08:42 PM EDT.

Mortality in the most affected countries

For the twenty countries currently most affected by COVID-19 worldwide, the bars in the chart below show the number of deaths either per 100 confirmed cases (observed case-fatality ratio) or per 100,000 population (this represents a country’s general population, with both confirmed cases and healthy people). Countries at the top of this figure have the most deaths proportionally to their COVID-19 cases or population, not necessarily the most deaths overall.

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