Vaccine hoarding threatens global supply via COVAX: WHO Countries seeking their own COVID-19 vaccine doses are making deals with drug companies that threaten the supply for the global COVAX programme for poor and middle-income countries, the World Health Organization said on Friday. Reuters Staff U.S.

GENEVA (Reuters) - Countries seeking their own COVID-19 vaccine doses are making deals with drug companies that threaten the supply for the global COVAX programme for poor and middle-income countries, the World Health Organization said on Friday.

Factbox: Latest on the worldwide spread of the coronavirus European Union leaders will meet on Thursday to try to speed up the production and rollout of vaccines in a race against the emergence of new variants that some fear could bring a third wave of the pandemic across the continent. Reuters Staff U.S.

* The World Health Organization is working with the European Commission to coordinate vaccine donations for other countries on the continent, the head of its European office said.

Why COVID vaccines are so difficult to compare Despite the widespread roll-out of several vaccines, it could be months before they can be ranked. Heidi Ledford nature

Yusuff Adebayo Adebisi knows that a vaccine that offers 70% protection against COVID-19 could be a valuable tool against the coronavirus pandemic in Nigeria — especially if that vaccine is cheap and doesn’t have to be stored at extremely cold temperatures. But what if another vaccine — one that is more expensive to buy and to store — was 95% effective?