Even notorious anti-vaxxer and US health secretary Robert F Kennedy Jr had to urge families to vaccinate their children against measles last week.

Despite being an entirely preventable disease thanks to a highly effective vaccine that has been widely available since the 1960s, cases of measles have skyrocketed in recent years, facilitated by a White House that’s declared war on scientific research, made a mess of childhood vaccine mandates, and furthered dangerous misinformation.

As of last week, the US had recorded 2,465 confirmed infections so far this year, already more than the 2,289 total cases in 2025. The last two years saw more total infections than the rest of the 21st century combined, as The Guardian reports, with 2026’s tally beating a 35-year record.

Now, in the midst of all that crisis crisis, a character has stumbled into the narrative who perfectly illustrates how it’s gotten so bad. As the LA Times reports, a measles-infected individual spent a whopping 11 hours at the Universal Studios Hollywood theme park last month, potentially exposing countless other visitors.

The Los Angeles County Public Health Department was forced to issue a stark warning: anybody who visited the amusement park on July 26 during teh hours between 10am and 9pm may have been exposed and should monitor for symptoms including fever, cough, or rash — and stay vigilant until August 16.

The virus is contagious up to four days before the characteristic rash appears on the skin, and up to four days after that.

Measles can easily spread through the air through just via talking or breathing, and can persist on surfaces for hours at a time.

The vaccine against it, available as part of the measles, mumps, and rubella combination (MMR) shot, is extremely worthwhile. Two doses are 97 percent effective in preventing a measles infection.

The department also urged “everyone to confirm their immunity and get the vaccine if needed, especially before traveling and attending crowded events.”

California has been hit particularly hard, recording at least three localized measles outbreaks this year so far. However, according to the state’s health department, all three outbreaks have ended.

According to the Centers for Disease Control and Prevention, there have been 38 new outbreaks in 2026 across the country so far this year, with several thousand cases spanning 47 states.

The danger to one’s health is substantial — especially to the unvaccinated. According to the CDC, roughly one in five unvaccinated people in the US who get measles are hospitalized. One out of 20 children with measles develop pneumonia. and one to three of every 1,000 children who become infected die from respiratory and neurologic complications.

More on infectious diseases: This Measles Outbreak at a Detention Center Perfectly Encapsulates America Right Now