By Sarah Owermohle

The decision gives the U.S. a third vaccine against the virus, boosting the nation’s supply of shots that can curb the pandemic.

The vaccine, which is given as a single dose and is easy to ship, appeals to officials struggling to vaccinate hard-to-reach or skeptical populations.

The decision gives the U.S. a third vaccine against the virus, boosting the nation’s supply of shots that can curb the pandemic.

The vaccine, which is given as a single dose and is easy to ship, appeals to officials struggling to vaccinate hard-to-reach or skeptical populations.

The agency’s analysis finds the shot provides strong protection against severe disease.

The company has applied to the Food and Drug Administration for emergency authorization.

All of the executives stressed that they are looking for ways to increase production to meet the overwhelming demand.

The company has applied to the Food and Drug Administration for emergency authorization.

The vaccine is a single dose shot that experts say is key to vaccinating vulnerable, hard-to-reach and even skeptical people.

The vaccine is a single dose shot that experts say is key to vaccinating vulnerable, hard-to-reach and even skeptical people.

The vaccine is a single dose shot that experts say is key to vaccinating vulnerable, hard-to-reach and even skeptical people.

Biden’s quest to beat back the pandemic is at a critical juncture.

The one-shot vaccine provides “complete protection against COVID-related hospitalization and death,” the company says.

Biden’s quest to beat back the pandemic is at a critical juncture.

The one-shot vaccine provides “complete protection against COVID-related hospitalization and death,” the company says.

Biden’s quest to beat back the pandemic is at a critical juncture.

The one-shot vaccine provides “complete protection against COVID-related hospitalization and death,” the company says.

New strains of the coronavirus have emerged in the United Kingdom, South Africa and Brazil.

One day into the Biden presidency, the longtime infectious disease expert described it as “a refreshing experience.

“With time, particularly over mid- to last summer and then into fall, there was a substantial amount of pressure,” Hahn told POLITICO.

The Trump vaccine official said there are still questions about the shot’s effectiveness, even as U.K. regulators authorized it Wednesday.

The Trump vaccine official said there are still questions about the shot’s effectiveness, even as U.K. regulators authorized it Wednesday.

Health experts worry that the public could balk if offered a shot that’s only moderately effective.

Health experts worry that the public could balk if offered a shot that’s only moderately effective.

The $1.95 billion agreement doubles the overall U.S. order for the vaccine to 200 million doses.

On Thursday, an independent FDA advisory panel endorsed use of the shot for people over 18.

On Thursday, an independent FDA advisory panel endorsed use of the shot for people over 18.

On Thursday, an independent FDA advisory panel endorsed use of the shot for people over 18.

The FDA is expected to authorize the vaccine on Friday.

Using every drop from overfilled vials could boost available doses by up to 40 percent.