The drug could change the course of the AIDS epidemic. But the Trump administration has gutted the programs that might have paid for it in low-income countries.
Researchers found children with highly addictive use of phones, video games or social media were two to three times as likely to have thoughts of suicide or to harm themselves.
Dr. Fiona Havers is influential among researchers who study immunizations. The wholesale dismissal of the agency's scientific advisers crossed the line, she said.