HARRISBURG, Pennsylvania, June 12 -- The Pennsylvania Department of Health issued the following news: * * * Pennsylvania Department of Health Responding to Potential Measles Exposure at Lancaster County Courthouse, Advises Unvaccinated Individuals are Most At-Risk People who may have been exposed and are not vaccinated should contact their health care provider or the Department of Health's toll-free hotline at 877-PA-HEALTH (877-724-3258) - The Pennsylvania Department of Health (DOH) confirmed a Lancaster County resident tested positive fo more PR