COVID-19: Why do more seem to die in some countries than others?

Around 10,000 extra people are dying each week in Europe, according to the latest information from The University of Oxford's Centre for Evidence-Based Medicine (CEBM) released on Monday.

Unsurprisingly, COVID-19 is driving the spike in deaths – primarily among the over-65s, who account for nearly 80 percent of total fatalities.

Each week, the CEBM publishes Europe's mortality rate. Since the pandemic began to increase that rate significantly, it started to look more closely at COVID-19's effect on the continent's death rate to help scientists understand more about the coronavirus, how many people are infected and how deadly it is, which the group calls its "case fatality rate."

Lockdowns in Spain, Italy and elsewhere are helping to slow the spread of the coronavirus and aggregate deaths are starting to plateau at a level  more in line with the seasonal average. Some countries, however, have case fatality rates as high as 15 percent. In others, such as Iceland, it's just 0.51 percent.

Understanding why there is such a disparity holds the key to knowing more about this silent killer.

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