Johnson & Johnson

The FEMA=supported centers will still provide second Pfizer doses to individuals who previously scheduled to do so after receiving their first dose at the sites.

Gov. Ron DeSantis said Florida should receive more than 300,000 one-dose Johnson & Johnson vaccines, even despite factory delays.

The material was made by Emergent BioSolutions, which is not currently part of the coronavirus vaccine supply chain but was ramping up to be.

The shots will be used to vaccinate homebound seniors and supply walk-up vaccine clinics.

Gov. Ron DeSantis says he expects to expand eligibility to people 55 and up sometime this month, but wants to make sure the supply can support the demand.

The third COVID-19 vaccine authorized for use in the U.S. requires one shot instead of two, and works a slightly different way from the others. Here's what we know about its safety and effectiveness.

Merck traditionally has been a leader in vaccines but has not had success with a COVID-19 vaccine. It's lending a hand to Johnson & Johnson, where production is running significantly behind schedule.

NPR's Scott Simon asks FDA adviser Dr. Paul Offit about Johnson & Johnson's vaccine and other developments in the pandemic.

The Johnson & Johnson vaccine only requires one dose and was found to be 100 percent effective at preventing hospitalizations and deaths.

The company says demand has declined "fueled by misinformation around the safety of the product and a constant barrage of litigation advertising." Lawsuits allege that the powder causes cancer.