GENEVA, Jan. 9 (CNA) - The head of the World Health Organization said on Friday (Jan 8) there is a "clear problem" that low- and middle-income countries are not yet receiving supplies of COVID-19 vaccines and urged countries to stop striking bilateral deals with manufacturers.

"Rich countries have the majority of the supply," WHO Director-General Tedros Adhanom Ghebreyesus said in strongly-worded comments on vaccine nationalism at a Geneva news briefing.

"No country is exceptional and should cut the queue and vaccinate all their population while some remain with no supply of the vaccine," he added.

He asked countries and manufacturers to stop making bilateral deals and called on those who have ordered excess doses to immediately hand them over to the COVAX vaccine-sharing facility.

While Tedros did not name countries, the European Union said it reached a deal with Pfizer and BioNTech for 300 million additional doses of their COVID-19 vaccine in a move that would give the EU nearly half of the firms' global output for 2021.

The scramble for shots has accelerated as governments also struggle to tame more infectious variants identified in Britain and South Africa, which are threatening to overwhelm healthcare systems.