The State Department of Health is marking World Immunization Week by reminding Pennsylvania residents about the importance of being up to date with their vaccinations. Secretary of Health, Dr. Rachel Levine, says the health department wants to reassure Pennsylvanians that vaccines are safe. She says misinformation about the measles vaccine has led to fewer children being vaccinated against measles and to recent outbreaks in Washington and New York states. Dr. Levine says there have been no confirmed cases of measles in PA this year. There were two confirmed cases in the state last year.