“Adults know about social, economic, cultural issues, but kids don’t understand all that yet,” said Catherine Collins, with her twins, Edison and Aria, in Clarendon Hills, Ill.

More than 1.3 million students in the United States have been identified as homeless, according to the most recent data. That is widely considered to be a significant undercount.

Jodie Singer, 28, is severely autistic, speaking only in short, repetitive phrases and requiring round-the-clock care.

President Trump and his health secretary, Robert F. Kennedy Jr., have angered some people with autism by calling it a crisis.

Errol Musk, who has at least nine children and stepchildren, at his home in South Africa in 2022.

Australia hopes, by December, to remove more than a million young teens from social media.

Khadiga Adam holds her severely malnourished 2-year-old daughter, Rashida, in South Sudan.

At least half of the eight new members of a C.D.C. panel, who are meeting for the first time on Wednesday, have expressed some skepticism about vaccines.

Usha Vance, who clerked for Chief Justice John G. Roberts Jr. and was a top editor on The Yale Law Journal, referred to herself as a “former lawyer” in a recent appearance.

A dose of the pediatric Covid vaccine in Charlotte, N.C., in 2021. The shots will remain available to children who have a conversation with their doctor, a practice the agency calls “shared decision-making.”

Bill Gates said that Elon Musk had gutted the U.S. Agency for International Development, resulting in the deaths of children in some of the world’s poorest countries.

“I think it’s objective to say to you that things will be better in the next 20 years.”