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 ...

As more and more of the United States population gets vaccinated against COVID-19, many are wondering: when will enough people be vaccinated for life to return to normal? That question doesn't have a ...

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 ...

Vaccines boost the immune system's ability to fight off diseases. Vaccines undergo rigorous testing to ensure safety and effectiveness. Widespread vaccination contributes to herd immunity, protecting ...

You might have heard of herd or community immunity, when a vaccinated portion of a population (aka "the herd") provides unvaccinated people with some protection from a contagious disease. Thanks to ...