But his plans face a tough road as pressure grows for big pharmaceutical companies to share their vaccine technologies with poorer nations.
This is what it looks in La Palma, where the most powerful volcanic eruption in half a century has upended life for islanders.
Moderna accepted $2.5 billion in taxpayer money to develop its Covid-19 vaccine. But officials in the U.S. and overseas are having trouble persuading the company to license its technology.
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