The Baltimore Health Department is investigating a possible measles case in a 12-month-old child — which could be the first documented case in the city in the last decade. Health officials said they were acting "out of an abundance of caution," but noted that the child might have had a reaction to a vaccine given earlier in the month.

Health Commissioner Dr. Leana Wen suggests the Measles situation in California is a "call to action" for Maryland parents to ensure their children have the proper vaccinations.  View the WBAL-TV story.

In emergencies of all types, Baltimore City community members respond at the individual level, within neighborhoods, as government agencies and healthcare organizations. Public health response begins at the most basic level. Many of you are involved in it on an ongoing basis for yourself and your family without thinking of it as protecting our collective health and safety.