How Is Measles Spread?
Measles spreads through:
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Airborne respiratory droplets
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Direct contact with nasal or throat secretions
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Being in the same room with an infected person (even after they leave)
Measles is so contagious that 9 out of 10 unvaccinated people exposed will become infected.
Who Is Most at Risk?
Recent data shows the highest positivity rates among individuals under age 20, with over 90% of cases occurring in unvaccinated or vaccination-unknown individuals.
How Do Vaccines Prevent Measles?
The MMR (Measles, Mumps, Rubella) vaccine works by helping your immune system develop protective antibodies against the virus.
Two doses of the MMR vaccine are:
Vaccination not only protects you — it protects infants, seniors, and immunocompromised individuals in our community.
If You Were Vaccinated Years Ago — Are You Still Protected?
In most cases, yes.
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If you received two doses of MMR, you are considered protected for life.
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Adults vaccinated between 1963–1967 may have received an older formulation; speak with your provider if unsure.
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If you were born before 1957, you are generally considered immune due to prior exposure.
If you are uncertain about your vaccination status, a blood test (titer) can check immunity.