PA measles outbreak: What to know amid rising cases

Key Points:

• Pennsylvania is experiencing a statewide measles outbreak with 1,222 confirmed cases and five deaths reported as of October 14, primarily affecting unvaccinated children and adults across 42 counties.
• Measles is highly contagious, spreading through airborne droplets and remaining active on surfaces for up to two hours, with about 20% of infected individuals requiring hospitalization.
• Symptoms typically appear 7 to 14 days after exposure and include cough, runny nose, fever, Koplik spots, and a characteristic skin rash; complications can be severe, especially for young children, pregnant women, and immunocompromised individuals.
• Health officials strongly recommend vaccination with the measles, mumps, and rubella (MMR) vaccine, which is about 97% effective after two doses, and advise early vaccination for infants in outbreak areas starting at 6 months old.
• Those exposed to measles who are unvaccinated should quarantine for up to 21 days to prevent spread, while vaccinated individuals do not need to isolate; anyone suspecting infection should contact healthcare providers before seeking in-person care.