Throughout the years, epidemics and plagues have shaken up societies and cultures around the world.
Allegheny County health officials say a report of a second case of measles within the last month was a false alarm.
The Allegheny County Health Department is investigating after a second person has come down with a suspected case of the measles this month.
Officials with the Allegheny County Health Department who are investigating after a resident was diagnosed with measles are urging anyone who may have been exposed to report it.
Officials are asking people to come forward, after it was discovered that a person rode a Port Authority bus while infected with measles.
A big measles outbreak in Europe has health officials watching for any concerning patterns here.