Holiday gatherings and a new variant have driven up COVID cases globally, the UN health agency says

Tedros Adhanom Ghebreyesus, Director General of the World Health Organization (WHO), speaks to journalists during a press conference at the World Health Organization (WHO) headquarters in Geneva, Switzerland, Thursday April 6, 2023. The head of the U.N. health agency says holiday gatherings and the spread of the most prominent variant globally led to increased transmission of COVID-19 last month. (Martial Trezzini/Keystone via AP, File)

GENEVA — The head of the U.N. health agency said Wednesday holiday gatherings and the spread of the most prominent variant globally led to increased transmission of COVID-19 last month.