Why is the Coronavirus-related Mortality Rate so varied in different countries?

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My Data Analytics Study on the Coronavirus Pandemic is in its 18th day today and I have chosen 30 countries for this study. These countries have been chosen not just because these have reported the highest number of cases, but also because they comprise the most populated nations on earth – that is why Bangladesh, Nigeria and Vietnam are part of the study.

The Table with COVID-19 (also known as SARS-CoV-2 or 2019-nCoV) data from the chosen 30 countries comprises 855,722 Coronavirus cases (up 8.7% from 787,124 yesterday), which is 90% of the total 950,430 cases (up 8.9% from 872,756 yesterday) reported worldwide at 10:00 am UTC today, and is therefore more than a good reference sample.

The average “Mortality Rate” (number of dead as a percentage of those who had tested positive for Coronavirus) for the 30 countries is 5.5%. India is at the median of 3.3%.

The average Mortality Rate is 9.2% for the Top 10 countries in this Study, 2.9% for the Middle 10 countries, and just 1.3% for the Bottom 10 countries.

Why is the Mortality Rate so high in Italy, UK, Netherlands, Indonesia, and Spain? I have purposely left Bangladesh out as the data from that country cannot be reliable, with such low numbers.

On the other hand, ignoring Vietnam and Nigeria, how is the Mortality Rate so low in Australia, Thailand, Russia, Germany, Pakistan, Austria, Malaysia, South Korea, and Turkey? With no intention of making a joke of the deadly pandemic, I want to understand whether these 9 countries have some magic potion?


  • Global cases have crossed 964,750
  • Global Deaths are at 48,246
  • Germany (81,728) has crossed the number of positive cases in China (81,589) and is just 3 deaths away from 1,000
  • UK has crossed 30,000 cases and is at 33,718
  • Norway has become the 21st country with 5000+ cases

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