The number of measles cases associated with an outbreak in Texas has grown to 159 -- an increase of 13 cases in the past five days, authorities said on Tuesday. The Texas Department of State Health Services updated its website with the new numbers Tuesday afternoon and said the majority of the cases are in unvaccinated individuals or those whose vaccination status is unknown,

America’s regression could change the experience of childhood. This is an edition of The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here.

Measles, a vaccine-preventable infectious disease, was eliminated as an endemic disease from the United States in 2000. Now, 25 years later, it has spread