In recent months, Mr. Gates, who emphasizes that he is one of many involved in the vaccine effort, has hosted online round tables with drug company officials. He has pursued financial commitments from world leaders: In one week alone, he and his wife and co-chair, Melinda Gates, spoke with President Emmanuel Macron of France, Chancellor Angela Merkel of Germany, President Ursula von der Leyen of the European Commission and Crown Prince Mohammed bin Zayed of Abu Dhabi.
In Washington, he has consulted frequently with Dr. Anthony S. Fauci, the nation’s chief infectious disease expert and a longtime collaborator on vaccine initiatives, and talked to Senator Mitch McConnell, a polio survivor who has been supportive of programs to eradicate that and other scourges. And to help staff the vaccine effort, his foundation has provided millions of dollars for McKinsey & Company consultants.