09/10/2026
Post released from Missouri Department of Health and Senior Services
🦠One dose is equal to 93% lifetime protection.
🦠Both doses add up to 97% lifetime protection.
🦠Herd immunity is achieved when 95% of a community is protected.
🦠People who can't be vaccinated due to age or compromised immune systems rely on herd immunity to stay safe.
🦠MO is officially below herd immunity standards.
More information about measles and county-level MMR vaccination rates can be found at Health.Mo.Gov/measles.