Johnson and Johnson

The U.S. COVID-19 vaccination program has gone from zero to 50% in less than six months. As of Tuesday afternoon, the Biden administration said, half of the country's adults are now fully vaccinated against the coronavirus.

The Food and Drug Administration and the Centers for Disease Control and Prevention announced Friday after the panel voted that the vaccine is safe and effective at preventing COVID-19, and its benefits outweigh the known risks.

Peeling paint. Cracked buckets. Employees dragging unsealed bags of medical waste. Procedures ignored. Inadequately trained staff. All of these were problems noted by U.S. Food and Drug Administration inspectors at the Emergent BioSolutions factory in Baltimore – a facility that is intended to produce materials for the Johnson & Johnson COVID-19 vaccine.

The Centers for Disease Control and Prevention says the blood clots are extremely rare but that it is reviewing the cases. The agency says it expects this pause to last for "a matter of days."

The U.S. Centers for Disease Control and Prevention and the Food and Drug Administration said Tuesday they are recommending a "pause" in the use of the single-dose Johnson & Johnson COVID-19 vaccine out of an "abundance of caution" while a review of reports of rare, potentially dangerous blood clots is conducted.

Johnson & Johnson is reporting a setback in its effort to produce tens of millions of COVID-19 vaccine doses, saying a contract production plant in Baltimore produced an ingredient that failed quality control tests. The material was made by Emergent BioSolutions, according to Johnson & Johnson.

The new guidance is specific to freedoms that vaccinated people can resume in their own homes, but the agency warns that everyone – even those who are vaccinated – should continue to follow recommended guidelines in public settings, including masking.

As the newest coronavirus vaccine makes its debut, the American public has a new set of deliberations before walking into their vaccine clinic — go with the new arrival or stick with the two vaccines that have already gone into the arms of more than 50 million Americans?

Unlike the Pfizer-BioNTech and Moderna vaccines, the Johnson & Johnson vaccine was produced in part through the use of cell lines derived from an aborted human fetus. In a statement released this week, leaders of the U.S. Conference of Catholic Bishops said that this feature of the vaccine raises questions about its permissibility.

A third COVID-19 vaccine is on the way, and this one requires only one shot for immunization. The Food and Drug Administration authorized Johnson & Johnson's vaccine for emergency use Saturday, a day after a panel of advisers to the agency voted unanimously (22-0) in its favor.