Surgeon General nominee Casey Means said during a confirmation hearing Wednesday that she believes vaccines save lives but did not unequivocally urge people to get vaccinated.The big picture: The nutrition influencer and ally of Health Secretary Robert F. Kennedy Jr. faced tough questioning from Senate health committee chair Bill Cassidy (R-La.) over how she would handle vaccine messaging as the nation's top doctor.Pressed on whether she would encourage vaccination against measles amid a series...