One in three kindergarteners in Allegheny County were in a classroom with vaccination rates below the herd immunity threshold during the 2023-2024 school year.

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 ...

Students attending Dallas-area schools are less likely to be vaccinated against measles than they were five years ago, posing a risk to herd immunity amid increased outbreaks of the disease, an ...

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 ...

Herd immunity is the name for a point in time when it's hard for a disease to spread through a group of people. The idea of herd immunity works for some diseases, such as measles. But it's a harder ...

The term herd immunity saw an increase in usage amid the COVID-19 pandemic.Herd immunity means that enough people within an area have developed a protection against a virus or other infectious disease ...

In this photo illustration, vials of measles, mumps and rubella vaccine are displayed on a counter at a Walgreens Pharmacy. (Photo by Illustration Justin Sullivan/Getty Images) Colorado measles ...

BRASILIA, Sept 27 (Reuters) - The largest city in Brazil's Amazon has closed bars and river beaches to contain a fresh surge of coronavirus cases, a trend that may dash theories that Manaus was one of ...

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 ...