By Erin Banco and Adam Cancryn

The hotly anticipated study helped convince the agency to revise its guidance on mask-wearing earlier this week.

The hotly anticipated study helped convince the agency to revise its guidance on mask-wearing earlier this week.

The hotly anticipated study helped convince the agency to revise its guidance on mask-wearing earlier this week.

The announcement marks a sharp change in policy for the nation’s leading health agency.

The announcement marks a sharp change in policy for the nation’s leading health agency.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

The changes include creating a clear reporting chain from the new director of the agency’s vaccine task force up to Rochelle Walensky.

Nancy Messonnier had drawn former President Donald Trump’s ire last year for her early warning about the pandemic.

Nancy Messonnier had drawn former President Donald Trump’s ire last year for her early warning about the pandemic.

Nancy Messonnier had drawn former President Donald Trump’s ire last year for her early warning about the pandemic.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The company has produced about 10 million doses of the vaccine for the U.S. but the FDA has not yet authorized their use.

The announcement Monday followed a call between President Joe Biden and Indian Prime Minister Narendra Modi.

The company has produced about 10 million doses of the vaccine for the U.S. but the FDA has not yet authorized their use.

The new vaccine confidence drive underscores the extent to which the administration is still concerned about Americans’ desire to get vaccinated.

The new vaccine confidence drive underscores the extent to which the administration is still concerned about Americans’ desire to get vaccinated.