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RALEIGH, N.C. (WTVD) -- Dr. Betsey Tilson serves as the State Health Director and the Chief Medical Officer for the Department of Health and Human Services. On Wednesday, she joined ABC11 to discuss ...

Discover what immunity is and learn effective ways to enhance your immune system for better health and well-being.

SAN FRANCISCO -- It's a story that has been making headlines across the United States: Did Californians develop herd immunity after possibly being exposed to novel coronavirus last year? On Thursday, ...

Herd immunity occurs when enough people become immune to a disease, either through vaccination or previous infection. This can reduce the likelihood of it spreading and increase protection for ...

You have probably heard that the United States is close to losing its measles elimination status, due to increasing numbers of measles cases since 2025.

As winter looms on the horizon, so do viruses and bacteria prepared to usher in annual colds and flu. The immune system is the first line of defense against these types of viral infections and ...