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 ...

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 ...

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 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 ...

Vaccination against the virus that causes cervical cancer is effectively protecting women at high risk for infection who haven't even been vaccinated, a new study said. This type of effect is called ...

AUSTIN (KXAN) — More than half of Texas’ counties have MMR vaccination rates among kindergartners below the threshold for what the Centers for Disease Control and Prevention says is needed for herd ...

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 ...

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

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 ...

Fewer San Diego County kindergarteners are getting their state-required childhood vaccinations each year, and their measles immunization rate places the county below herd immunity levels, county data ...

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 ...