Citing new data, Pfizer outlined a case for booster shots, but there’s a debate over whether they’re needed.

Pfizer reported on Wednesday that the power of its two-dose Covid vaccine wanes slightly over time, but nonetheless offers lasting and robust protection against serious disease. The company suggested that a third shot could improve immunity, but whether boosters will be widely needed is far from settled, the subject of heated debate among scientists. So…

Nursing Homes May Face Steeper Safety Fines

As the Delta variant raises fresh concerns about the safety of the nation’s nursing homes, the Biden administration has quietly reversed a controversial Trump policy that had limited the fines levied on facilities that endangered or injured residents. Deaths in nursing homes, which peaked at the end of last year, have plummeted since the introduction…