Moderna asks for approval of booster shots for all U.S. adults. The company’s request to the FDA on Wednesday comes as the agency is poised to approve the Pfizer booster for all adults this week. Read more

Nearly 1 in 3 U.S. hospital workers still unvaccinated. Data on more than 3.3 million health care workers at more than 2,000 hospitals nationwide shows 30% were still unprotected from COVID by mid-September. Read more

Gene therapy could reverse a rare illness in kids. Hurler syndrome is a genetic disorder that damages tissues throughout the body. The new treatment appeared both safe and effective in a small new study. Read more