Measles

A new study finds that the percentage of kindergartners in the state without up-to-date vaccinations dropped from nearly 10 percent in 2013 to under 5 percent in 2017.

More cases have been reported this year than in all of 1992, when the country had its last big outbreak.

A woman tends to her daughter, age six, who is about to receive a measles vaccine shot at a health clinic on May 15th, 2019, in Kiev, Ukraine.

Instagram will warn users about anti-vax content, drilling plans for California are moving forward, and penguin poop is good for biodiversity.

Health officials have tried many different strategies, but the science is still in its early days.

Plus, why Trump's turnaround on vaccine safety was very late—but still helpful.

The city's health department will begin imposing fines for unvaccinated people living in the neighborhood of Williamsburg.

Public-health experts say the measure is unusual, but necessary.

While anti-vaccine propaganda continues to spread online, experts and teens are talking about how to fight it.

Legislation made the anti-vaccine movement possible—and as the example of West Virginia shows, it can also help fight it.

New reports have implicated Facebook and other social media platforms for their role in the spread of anti-vaccine propaganda.

Research shows anti-vaxxers have stoked public resistance to vaccination and increased rates of vaccine-preventable diseases across the country.

A measles outbreak increases vaccination demand, a new bill would address the crisis of missing Native American women, and California's wet weather eases drought conditions.

New research finds that vaccine skeptics possess an unusual mix of ethical beliefs that defy the traditional left-right divide.

A measles outbreak hits the Northwest, Australia breaks heat records, and a fourth state mulls banning the gay panic defense.

The WHO has named vaccine hesitancy as one of the top 10 public-health threats of 2019. Here's how the anti-vaccination movement came about, and what to do about it.

Minnesota has had more cases of measles this year than the entire U.S. did in 2016.

Despite research suggesting it would backfire, a new study finds that stories and images of sick children can change minds about the need to vaccinate.

Because measles passes so easily between people, 96 percent to 99 percent vaccination rates are required for "herd immunity" to work.

The Ebola epidemic will likely lead to outbreaks of other diseases, but countries could prevent that with vaccination campaigns.

Vaccinations are typically regarded as the most important public health advancement in history. So why are they going away?