Herd immunity means that more people are immune to a contagious disease than the amount that can be infected. Here's how it ...

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 ...

New York state has half the population of California but has experienced 14 times as many deaths from novel coronavirus. RELATED: Californians may have developed some herd immunity to coronavirus last ...

In a press conference today, Governor Patrick Morrisey expressed his continued support of his religious vaccine exemption ...

An infectious disease specialist took the time to explain what herd immunity is, how it works and when it might affect the spread of COVID-19. Dr. Frank Esper works for the Cleveland Clinic Children's ...

A vaccine is a part of a virus that is used to build immunity and prevent the spread of disease. Here's five of the most ...

Herd immunity went from a phrase most of us had never heard of to the thing we're all waiting for in just about a year's time. "It's kind of shorthand for back to normal," said Dr. Bob Wachter, chair ...

An NBC News investigation found childhood vaccine rates have dropped significantly. But does this matter if you or your child ...

HOUSTON, Texas (KTRK) -- At large vaccination sites, like the one in Galveston County where staff is administering up to 5,000 vaccinations a day, the hard work is paying off. Galveston County is ...

CHICAGO (WLS) -- With many states reporting more cases, there has been a lot of talk about "herd immunity." On Thursday, Dr. Anthony Fauci weighted in on the concept of "herd immunity." President ...