Explained: Pennsylvania officials report state's 3rd death involving measles

A 40-year-old Jefferson County woman died Saturday from measles-related complications, the third such death in Pennsylvania this year.

Amish lethal microcephaly

A genetic condition causing an unusually small head and underdeveloped brain, typically fatal within 6 months.

NCHS

National Center for Health Statistics, part of the CDC that compiles official death records.

coroner

A public official who investigates and determines the cause of unexplained or violent deaths.