US regulators approved Moderna Inc.’s Covid vaccine for children, but for a narrower group than before, continuing Robert F. Kennedy Jr.’s controversial policy that restricts access to the shots for some kids.

Health Secretary Robert F. Kennedy says he cannot walk down the street without mothers swarming him to thank him for the work he has done in questioning the quality of the food supply and the efficacy of vaccines.

For decades, one of the world’s most contagious diseases was considered eradicated in the U.S. But today, measles is roaring back with more than 1,267 cases reported this year in the U.S.,