Outbreak Statistics and Definitions
Pennsylvania’s measles outbreak has intensified, with the state health department reporting more than 1,130 cases as of late last week. According to CBS Pittsburgh, the state has reported a total of 1,136 cases in 2026, with 157 of those reported within the last seven days. Of the total cases, 219 people have been hospitalized.
State officials define a measles-associated death as one that occurs within 30 days of symptom onset and includes clinical evidence of infection, such as a positive laboratory test, provided the death is not due to unrelated causes like a car accident. However, the Centers for Disease Control and Prevention (CDC) has only recognized two measles-associated deaths nationwide. The CDC’s website does not specify the locations of these deaths, but Pennsylvania is the only state to have reported fatal measles cases so far this year.