America’s regression could change the experience of childhood. In 2000, the CDC declared that measles had been eliminated from the United States. But now America is at risk of losing that status: A measles outbreak has sickened more than 150 people in Texas and New Mexico since late January. An unvaccinated school-aged child recently died from measles in Texas—the first known death from measles in America in about a decade, and the first child to die from the disease since 2003. I spoke with my colleague Katherine J. Wu, who covers science and health, about why vaccination is the only way to prevent the spread, and how a surge in illnesses that had previously faded from American life could reshape childhoods.
Lora Kelley: Why is measles so reliant on vaccines to prevent its spread?
Katherine J. Wu: Measles is arguably the most contagious infectious disease that scientists know about. Researchers have estimated that, in a population where there’s zero immunity to measles, one infected person is going to infect roughly 12 to 18 other people. That is extremely high. In most cases, it is a respiratory infection that’s going to cause fever, cough, and rash, but it can also restrict breathing, cause complications such as pneumonia, and be deadly.