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. 

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. 

AP Exclusive: Aid from top donors drops even as need soars JOHANNESBURG (AP) — A new snapshot of the frantic global response to the coronavirus pandemic shows some of the world’s largest government donors of humanitarian aid are buckling under the strain:... AP NEWS

JOHANNESBURG (AP) — A new snapshot of the frantic global response to the coronavirus pandemic shows some of the world’s largest government donors of humanitarian aid are buckling under the strain: Funding commitments, for the virus and otherwise, have dropped by a third from the same period last year.

Trump says virus in US will get worse before it gets better WASHINGTON (AP) — President Donald Trump sought to paint a rosier picture of the coronavirus for the nation Tuesday but conceded the pandemic is likely to get worse for a time as he revived his... AP NEWS

WASHINGTON (AP) — President Donald Trump warned on Tuesday that the “nasty horrible’” coronavirus will get worse in the U.S. before it gets better, but he also tried to paint a rosy picture of efforts with governors to conquer the disease that has claimed more than 140,000 American lives in just five months.

Updated CDC guide says self isolate for 10 days after positive COVID The Centers for Disease Control and Prevention (CDC) has updated its guidance on self isolation for people who test positive for COVID-19. Nathaniel Weixel TheHill

Washington--The Centers for Disease Control and Prevention (CTDC) has updated its guidance on self isolation for people who test positive for COVID-19.