A Trump administration lawyer said health secretary Robert F. Kennedy has “broad, unreviewable authority” to alter vaccine policy and could, hypothetically, recommend people get measles to achieve ...

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 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 ...

When people hear the phrase herd immunity, many think immediately of COVID-19. During the pandemic, we learned—sometimes painfully—that individual health decisions can shape collective outcomes.

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, ...

A nearly COVID-free summer has long been the goal of public health officials who are striving to get enough people vaccinated by then to achieve so-called herd immunity. But is that a realistic goal? ...

With COVID-19 infection rates beginning to return to pre-omicron levels, is the U.S. any closer to reaching herd immunity? Probably not. Experts say it's not likely that the highly transmissible ...

As a number of western nations, including the United States, wind down stay at home orders, the World Health Organization said on Monday that attempting herd immunity without a vaccine is a “dangerous ...

The drop has raised concerns among public health experts and a large hospital system that preventable infectious diseases ...