"I must say I'm concerned that member states may not meet that commitment," said Director-General Tedros Adhanom Ghebreyesus in an address to the global health agency's Executive Board.

"In my view, a failure to deliver the pandemic agreement and the IHR (International Health Regulations) amendments will be a missed opportunity for which future generations may not forgive us," he said.

(Reporting by Emma Farge; Editing by Miranda Murray)