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 ...

CHICAGO (WLS) -- There are huge challenges in the quest for herd immunity with millions of adults in Illinois remaining unvaccinated. The I-Team examined why demand for the vaccines is dropping and ...

LOUISVILLE, Ky. — As vaccinations slow down across the country, many experts worry the nation will not reach herd immunity. That’s where enough people are immune to a disease to make its spread ...

A check mark. It indicates that the relevant content has been reviewed and verified by an expert Our stories are reviewed by medical professionals to ensure you get the most accurate and useful ...

Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

U.S. activists, aligned with Health Secretary Robert F. Kennedy Jr., are pushing to ban vaccine mandates in multiple states, ...