The World Health Organization chief warned that “the worst is yet ahead of us” in the coronavirus outbreak, reviving the alarm just as many countries ease restrictive measures aimed at reducing its spread.

WHO Director-General Tedros Adhanom Ghebreyesus didn’t specify why he believes the outbreak that has infected some 2.5 million people and killed over 166,000 could get worse. He and others, however, have previously pointed to the likely future spread of the illness through Africa, where health systems are far less developed.

“Trust us. The worst is yet ahead of us. Let’s prevent this tragedy. It’s a virus that many people still don’t understand”, - said the Head of WHO.

Some Asian and European governments have gradually eased or started relaxing “lockdown” measures like quarantines, school and business closures and restrictions on public gatherings, citing a decline in the growth of COVID-19 case counts and deaths.