The Hood River County Health Department says Measles, Mumps, and Rubella vaccination rates among K-12 students are good, with 97 percent receiving a first dose and 95 percent getting the second.  But Communicable Diseases Nurse McKenna Carter says the rate for younger children drops to 92 percent, and while they don’t have specific statistics for adults, a trend toward lower overall vaccination rates is concerning.  Department Public Information Officer Daron Ryan says they find most unvaccinated people tend to be gathered together.  Both Carter and Ryan urge those with questions about the MMR vaccine to talk with their health care provider, or your local public health department.