Florida remains below the 95% measles immunity benchmark as exemptions rise and measles cases hit historic highs.

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 ...

When COVID-19 first began spreading, public health and medical experts began talking about the need for the U.S. to reach herd immunity to stop the coronavirus from spreading. Experts have estimated ...

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 ...

New data from the Centers for Disease Control and Prevention shows Arizona's kindergarten vaccination rates for the 2025-2026 ...

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 ...

New CDC data shows that kindergarten immunization rates are falling while vaccine exemptions are rising nationally and in ...

Texas is facing the country’s largest measles outbreak in decades. As of Tuesday, 124 cases have been reported, and the state’s health department expected that number to grow. The outbreak is ...

AUSTIN, Texas — The Texas measles outbreak continues, with state health officials reporting 159 cases as of Tuesday, March 4. That includes one reported case in Austin that has been traced to ...

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 ...