Measles Cases in the US Hit 25-Year High, Fueled by Falling Vaccination Rates

Strategic Insights -

Fueled by declining vaccination rates, measles cases in the US have reached a 25-year high, with over 1,270 confirmed cases reported this year, mostly in unvaccinated children. Health experts warn of a growing health crisis, citing the contagious nature of the disease and the devastating impact on young victims. The largest outbreak started in West Texas, with a vaccination rate of nearly 1 in 4 kindergartners not receiving the MMR vaccine. Measles is now reported in 38 states, with air travel playing a significant role in spreading the virus.

Key Takeaways:

  • Measles cases in the US have hit a 25-year high, with over 1,270 confirmed cases reported this year.
  • The majority of measles cases are in unvaccinated children, with nearly 30% of cases in children under 5.
  • The largest outbreak started in West Texas, where nearly 1 in 4 kindergartners did not receive the MMR vaccine.
  • Measles is now reported in 38 states, with air travel contributing to the spread of the virus.
  • The Centers for Disease Control and Prevention (CDC) reports that the MMR vaccine is highly effective, with one dose giving 93% protection and two doses offering 97% protection.
  • Some states have taken action, allowing infants to get their first MMR shot as early as 6 months old, resulting in increased vaccination rates.
  • National vaccination rates remain below target, with over 125,000 kindergartners missing at least one required vaccine in the 2023-24 school year.
  • Public health experts warn that growing mistrust in vaccines and leadership changes are exacerbating the crisis.

Statistics:

  • Over 1,270 confirmed measles cases reported in 2025, the highest number in 25 years.
  • 750 cases reported in West Texas since January, with nearly 1 in 4 kindergartners not receiving the MMR vaccine.
  • Measles now reported in 38 states, with 27 separate outbreaks.
  • Nearly 30% of measles cases are in children under 5, with about 1 in 8 infected people being hospitalized.
  • The MMR vaccine is highly effective, with one dose giving 93% protection and two doses offering 97% protection.
  • Only 95% of kindergartners aim to receive two MMR doses, but have missed this goal for four consecutive years.
  • Over 125,000 kindergartners missing at least one required vaccine in the 2023-24 school year.

Sources:

  • CNN
  • Johns Hopkins University
  • Centers for Disease Control and Prevention (CDC)
  • American Medical Association
  • Healthcare data firm Truveta
  • IE Online Media Services Pvt. Ltd.