Health

The United States was the major funder of tuberculosis programs. Now hundreds of thousands of sick patients can’t find tests or drugs, and risk spreading the disease.

Five years after the novel coronavirus emerged, historians see echoes of other great illnesses, and legacies that are unlike any of them.

The small study in patients with a rare disorder that causes liver and lung damage showed the potential for precisely targeted infusions.

In a recent interview, the health secretary also suggested that the measles vaccine had harmed children in West Texas, center of an outbreak.

How Republicans could change the program.

New York Times photographers covered Covid-19 throughout the world. These pictures, and the moments behind them, stayed with them.