Study finds vaccines effectively reduce deaths from COVID-19 but not the prevalence of infections

Researchers in Australia have investigated coronavirus disease 2019 (COVID-19) vaccine effectiveness on the prevalence and mortality of the Delta variant. They found that countries with more vaccine coverage suffer from less mortality. However, the case numbers remain high, eventually leading to outbreaks. The team attributes the scenario to the fact that the countries with more vaccine coverage are at the same time the most vulnerable to COVID-19 infection.