The ongoing measles outbreak has reached three states and serves as a stark reminder of the vital role that herd immunity plays in safeguarding our communities. Originating in Gaines County, Texas, ...

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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 ...

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 ...

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 ...

As measles outbreaks spread rapidly through parts of North America, a top US immunologist has issued a grave warning: the world may now be entering a “post-herd-immunity” era — a phase in which the ...

It’s among the most-contagious viruses known. One infection can be expected to spread to between 12 and 18 additional people. If 10 unvaccinated people are in a room with a known case, nine will ...

To the editor: The new leaders at the U.S. Food and Drug Administration and Department of Health and Human Services say COVID-19 vaccines will require additional testing before being approved for ...