FIRST 2 YEARS OF COVID-19
The world's hopes were hinged on the vaccination deployment as 2020 drew to a close. As of December 20, about 8.8 billion doses of coronavirus vaccine had been provided to 4.5 billion persons globally, with 3.7 billion receiving full vaccination. It demonstrated that immunizations reduce the chance of a Covid-19 infection resulting in hospitalization or death in real-life situations.