The COVAX coronavirus vaccine-sharing program says it will deliver 237 million doses of AstraZeneca's COVID-19 shot to 142 countries by the end of May as it steps up the global roll-out of its vaccine supplies.
The timeline for the delivery of doses, made by AstraZeneca and by India's Serum Institute, will be split into separate two-month schedules, COVAX said in a statement, with the first in February-March and the second in April-May.
"These timelines are dependent on a variety of factors including national regulatory requirements, availability of supply and fulfilment of other criteria such as validated national deployment and vaccination plans," the statement said.
COVAX is the program backed by the World Health Organisation and GAVI vaccine alliance to provide vaccines for poor and middle-income countries.
It began its roll-out last week with the first deliveries of shots to Ghana and Ivory Coast.
"It can't be overemphasised enough that we are undertaking the largest and most complex vaccine roll-out in history," Seth Berkley, GAVI chief executive officer, told a news conference.
"We are just starting, but we should see more and more countries being served in coming weeks and months including those at all income levels and across the world," he said.
Hailing the campaign as an "unprecedented partnership," WHO Director-General Tedros Adhanom Ghebreyesus said Angola, Cambodia, Democratic Republic of Congo and Nigeria could also expect deliveries of COVAX-supplied vaccines on Tuesday.
"This is an unprecedented partnership that will not only change the course of the pandemic but also change the way the world responds to future health emergencies," Tedros said.
Ghanaian President Nana Akufo-Addo told the same briefing that his country, which this week began its inoculation campaign with COVAX doses, aimed to vaccinate 20 million people by the end of 2021.
The COVAX statement said that as well as the first round of allocations of the AstraZeneca vaccine, 1.2 million doses of the Pfizer-BioNTech shot were also anticipated for delivery in the first quarter of 2021.
COVAX hoped to finalise a deal with Novavax for 1.1 billion doses in coming weeks, Berkley said.
Australian Associated Press