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Good morning.

Here’s what you need to know:

• A new era in medicine.

A Food and Drug Administration panel unanimously recommended on Wednesday that the agency approve the first gene therapy in the U.S. to fight cancer.

The treatment, for a type of leukemia, genetically alters a patient’s cells, transforming them into what scientists call “a living drug” that bolsters the immune system.

The F.D.A. is likely to accept the recommendation, and other gene therapies are expected.