Avie Schneider

A new Apple Watch and software with advanced heart-monitoring capabilities could boost the detection of abnormal heartbeats in millions of people, but it could also raise the chance of false positives, a cardiologist and researcher says.

Apple unveiled three new iPhones, including two with bigger displays, but perhaps the more dramatic announcement from Cupertino, Calif., on Wednesday was its new Apple Watch, with the new health-related tools.

When Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, hugged Dallas nurse Nina Pham on Friday it was as much to combat the stigma surrounding the deadly virus as to celebrate her being free of Ebola.

Fauci said it was an honor to treat Pham and get to know "such an extraordinary individual." Pham said she felt "fortunate and blessed" and put her trust "in God and my medical team."

Pham later met with President Obama in the Oval Office. The president and the nurse also hugged as news photographers captured the moment.