Interview, Other
Covid-19: how many people have died?
- Revised Mortality Estimates: The Economist's statistical model calculates that 7 million to 13 million people (approximately 10 million) have died due to the pandemic, a figure three to four times higher than the official global statistic of ~3 million.
- Data Discrepancies by Region:
- Developed Nations: Official counts in countries like the United States are relatively accurate, with excess deaths estimated at only 7% higher than recorded totals.
- Developing Nations: The gap between official and actual death tolls is enormous in poor and middle-income countries, where undercounting is most severe due to limited testing capacity.
- Specific Outliers: In Russia, excess deaths are estimated at five times the official count, reclassifying the country from a "somewhat light-hit" nation to one of the most severely affected in Europe and the world.
- Methodology for Unavailable Data:
- The model utilized 121 distinct indicators spanning demography, geography, and population mobility to estimate missing data.
- Missing data points were treated as information in themselves, while gaps were filled using regional averages and data from neighboring countries.
- Current Trajectory and Spikes:
- Deaths per day have been rising consistently for the past year rather than following a distinct "first and second wave" pattern.
- India is currently experiencing a massive spike driven by widespread transmission, with modeling suggesting ~20,000 daily deaths compared to the official tally of ~4,000.
- Geographic and Demographic Factors:
- Undercounting Drivers: In many developing nations, underreporting is attributed to the high cost of testing and potential government incentives to avoid revealing the true severity of the outbreak.
- Demographic Impact: The disease's lethality is heavily age-dependent; while raw death rates appear comparable between wealthy and poor nations, the infection fatality rate in Italy is estimated to be 10 times higher than in Uganda due to differences in population age structure.
- Infection vs. Mortality: High infection rates in younger populations (e.g., in parts of Africa and Latin America) likely explain why total death counts remain comparable to wealthier nations despite lower per capita mortality risk.
- Deficit Deaths:
- Some regions experienced fewer deaths than expected ("deficit deaths"), including Australia, New Zealand, and Norway, likely due to reduced transmission of other infectious diseases like influenza.
- Future Expectations: The modeling suggests India's current situation is not an outlier but an expectation for other developing nations, as the virus has subsequently moved from the wealthy world into less internationally connected regions causing mass mortality.