COVID cases up almost 18% worldwide as omicron variants run rampant

World Health Organization (WHO) Director-General Tedros Adhanom Ghebreyesus, in a 2021 file photo, at the WHO headquarters in Geneva. (Fabrice Coffrini/AFP/Getty Images/TNS)

While vaccinations have greatly cut down on hospitalizations and deaths, COVID-19 cases are on the rise again around the world.