The study , published Monday in the journal Pediatrics , confirms that about 2 % of parents living in the United States are refusing all vaccines for their children , and more than one in 10 alter the Centers for Disease Control and Prevention-recommended vaccination schedule by delaying or refusing certain vaccines . about 2 % of parents living in H1N1 are refusing all vaccines for their children . any year has seen more cases of measles than in any year since 2011 . In Europe , the measles outbreak has been far worse than in the United States .
about 2 % of parents living in H1N1 are refusing all vaccines for their children . any year has seen more cases of measles than in any year since 2011 . In Europe , the measles outbreak has been far worse than in the United States .