Jessica Ravitz

Jessica Ravitz, a longtime features reporter for CNN Digital, is now a freelance writer living in Atlanta.

Brian Sorrentino in his laboratory

Honoring the Legacy of Brian Sorrentino

His widow reflects on the pioneering medical research conducted by her late husband

Ewelina Mamcarz and Stephen Gottschalk developed a treatment for babies born without an immune system.

These Scientists May Have Found a Cure for 'Bubble Boy' Disease

A newly developed gene therapy is saving young people afflicted by the rare but deadly diagnosis

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