vaccine purchase order gap
COVAX explained

All participating countries, regardless of income levels, will have equal access to these vaccines once they are developed. The initial aim is to have 2 billion doses available by the end of 2021, which should be enough to protect high risk and vulnerable people, as well as frontline healthcare workers.
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To make all this a reality, Gavi has created the COVAX Facility through which self-financing economies and funded economies can participate. Within this also sits an entirely separate funding mechanism, the Gavi COVAX Advance Market Commitment (AMC), which will support access to COVID-19 vaccines for lower-income economies. Combined, these make possible the participation of all countries, regardless of ability to pay.

GAVI | Public-private Donor Profiles
"Working to improve the health of markets for vaccines and other immunisation products."
Africa secures 400 million more COVID-19 vaccine doses
"Separately from the AU's efforts, Africa is to receive about 600 million vaccine doses this year via the COVAX facility co-led by the World Health Organization (WHO)."

The new Biden administration could alleviate the brutal debt crisis in the Global South, particularly in Africa, by providing much needed liquidity to poor countries through new Special Drawing Rights. https://t.co/6xUYGwB4vM

— George Soros (@georgesoros) January 21, 2021