Hospitals report more parents are declining vitamin K shots for their newborns. They entered the world the way babies should, with piercing cries announcing their arrival. They passed their newborn screening tests. Some made it to their 2-week wellness visits without concern. Then, without warning, their systems began to shut down. A 7-week-old boy in Maryland developed sudden seizures. An 11-pound girl in Alabama stopped breathing for 20 seconds at a time. A baby boy in Kentucky vomited before becoming lethargic. A brown-haired girl in Texas, not yet 2 weeks old, bled around her belly button. Desperate to save them, records show, doctors inserted tubes into their airways and hooked them up to IVs. They ordered blood transfusions. They spent half an hour trying to resuscitate one boy until his parents told them they could stop. They shaved another boy’s soft locks to embed a needle directly into his skull to reduce the pressure in his brain. None of it was enough.…