Population age as a key factor in the COVID-19 pandemic dynamics

Abstract The population and governments of many countries are losing interest in the SARS CoV-2 infection, the number of tests and the number of new cases detected is sharply decreasing. To compare the accumulated numbers CC of cases and deaths DC per million and to answer the question why the less vaccinated Africa has accumulated 36 times lower CC values and 15 times lower DC values than Europe, simple statistical analysis have been performed. CC and DC values demonstrated rather strong correlation with the median age of populations. One-year increment in the median year yields 12-18 thousand increase in CC values and 52-83 increase in DC values. Zero-COVID countries succeed to have much lower numbers of deaths per capita and case fatality ratios DC/CC.