Physicians say a measles inoculation rate of roughly 95% achieves herd immunity. Pike and Wayne fall short by some of Pa.'s widest margins.

Across Pennsylvania, 94% of kindergartners had received 2 or more doses of the measles vaccine for the 2023-2024 school year, a 4-year drop of 1.5%.

The rate of children who last year were opted out of the childhood vaccinations required to attend school in Pennsylvania continues to grow in 2024. The rate fell below the "herd immunity" threshold.

Lubbock saw its first case of measles after 21 years, prompting health officials to advocate for the vaccine and safety. Here is what they said.

Bills to limit mandatory vaccines for childhood illnesses such as measles and polio have surfaced in more than 15 states, buoyed by President Trump’s pick for Health and Human Services secretary.

Preventing the resurgence of measles and other childhood illnesses, like polio, requires nearly universal vaccinations, which isn’t the case in Pennsylvania. During the 2019-2020 school year ...