An international effort, known as the Covax scheme will need a further $ 35-45 billion over the course of next year to ensure most adults are immunised, according to the Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus. It was reported by BBC.
According to him, the global situation with the distribution of vaccines is still extremely uneven. More than 49 million vaccine doses have been delivered through Covax so far.
Covax now also needs about 20 million extra doses by the end of June to make up a shortfall on deliveries caused by the spiralling health crisis in India.
Dr Tedros said in April that only 0.3% of the vaccines administered around the world so far had gone to people in low-income countries.
He has also criticised wealthier nations for undermining Covax, accusing them of "gobbling up" the global vaccine supply by ordering multiple times more than they need for their own populations.
Covax is co-led by the WHO, the Global Vaccine Alliance (Gavi) and the Coalition for Epidemic Preparedness Innovations (Cepi), with the UN children's fund, Unicef, as key implementation partner. Sweden is the latest country to donate to that pot, pledging one million AstraZeneca doses at the start of May.
Five vaccines have already been given emergency use authorisation by the WHO, which is a pre-requisite for Covax use.
The latest one is by US drug-maker Moderna, which has agreed a deal with Covax for 500 million doses at its "lowest-tiered price". However, the bulk of these will not be available until 2022.