Microsoft co-founder Bill Gates said Wednesday that people could need multiple doses of a potential coronavirus vaccine to immunize themselves from the coronavirus. If necessary, the multiple doses could require more than 7 billion vaccinations to be administered worldwide.

"None of the vaccines at this point appear like they'll work with a single dose," Gates said. "That was the hope at the very beginning."

The billionaire philanthropist, who has donated $300 million towards the global effort to combat COVID-19 through the Bill & Melinda Gates Foundation, told "CBS Evening News" anchor and managing editor Norah O'Donnell that deploying a coronavirus vaccine will require a global effort.

FEMA head: 'We have a ways to go' on having enough PPE The head of the Federal Emergency Management Agency (FEMA) told Congress on Wednesday the country has “a ways to go” on getting enough protective equipment for health workers fighting coronavirus, Peter Sullivan TheHill

WASHINGTON--The head of the Federal Emergency Management Agency (FEMA) told Congress on Wednesday the country has “a ways to go” on getting enough protective equipment for health workers fighting coronavirus, though he said the situation has been improving. 

...So-called wraparound home care services were created, on the fly, by Northwell Health to deal with the surge in coronavirus cases that New York experienced this spring. Now this model may help relieve health systems in the Sun Belt and other parts of the United States, where rising numbers of cases are putting extraordinary pressure on hospitals, filling intensive care units and sending providers scrambling to hire extra nurses and secure medical supplies.

Sweden Says Covid Immunity Can Last 6 Months After Infection Sweden’s top health authority says people who have had the novel coronavirus are likely to be immune for at least six months after being infected, whether they’ve developed antibodies or not. Niclas Rolander Bloomberg.com

Sweden’s top health authority says people who have had the novel coronavirus are likely to be immune for at least six months after being infected, whether they’ve developed antibodies or not.

Coronavirus updates: California now has the most cases in US The novel coronavirus pandemic has now killed more than 617,000 people worldwide and over 14.8 million people across the globe have been diagnosed with COVID-19. ABC News ABC News

The novel coronavirus pandemic has now killed more than 617,000 people worldwide.

Dr. Fauci says coronavirus immunity may be 'finite,' duration remains uncertain Fauci has previously said there's a chance a coronavirus vaccine might not provide long-term immunity. Will Feuer CNBC

Protection from any potential coronavirus vaccine might be short-lived and could require a booster to prolong protection, White House health advisor Dr. Anthony Fauci said Monday.