States have responded to increasing health care consolidation by enhancing their review of mergers and acquisitions. But some states have carved out certain academic medical centers from such ...

Recent changes in U.S. vaccine policy are sowing confusion and threatening the health of children and the wider population. How should pediatric clinicians communicate with parents to stem the damage?

Data are needed on the effect of oxygen delivered through a high-flow nasal cannula, as compared with standard oxygen therapy, on intubation and mortality in patients with acute hypoxemic ...

Whole-blood transfusion has recently gained favor in the management of severe hemorrhage; however, data from large clinical trials evaluating its clinical effectiveness and safety are lacking. We ...

Some foreign pharmaceutical plants that export generic drugs to the United States have glaring quality problems that can lead to drug shortages. There is a better way to assure the safety of ...

Editor’s note: The Covid-19 Vaccine Frequently Asked Questions page has been retired. Updated information regarding Covid-19 vaccination may be found at the NEJM Covid-19 Vaccine Resource Center.