This chart shows the evolution over time of daily COVID-19 cases per capita across UN subregions. To remove intra-week volatility in the reported data, the indicator is transformed into a 7-day trailing average (the average value of the latest observation and the preceding 6 days).
The case rate expresses COVID-19 cases relative to the size of the population. By relating COVID-19 cases to population size, we get a measure of the prevalence of confirmed infections within the community tested. In contrast to the absolute case toll, the case rate provides an indication of the performance of country or group of countries in terms of protecting its population against infection.
It should be noted that the different regional groups shown here are of very different population size dimensions. In light of these differences in population size, the absolute case toll will be quite different given the differences in rates.
Finally, note that limitations to testing will mean that the number of confirmed cases is lower than the true number of infections.