Why are measles vaccination rates declining?
Increased vaccine skepticism, philosophical exemptions, and disruptions caused by the COVID-19 pandemic have contributed to lower vaccination rates.
Health / Vaccination
Recent reports indicate a concerning decline in measles vaccination rates across the United States, raising alarms among public health officials. This trend threatens to reverse the elimination of measles achieved in 2000 and puts vulnerabl...
Measles, mumps, and rubella (MMR) vaccination rates are dropping in the US, endangering the population. A study by Johns Hopkins University showed that measles vaccination rates have declined in nearly 80% of over 2,000 US counties after the COVID-19 pandemic. Some areas, like certain counties in Texas and Kansas, have seen significant drops below the 95% herd immunity threshold.
In Pennsylvania, the number of schools below the immunization level has almost doubled in five years. This trend is fueled by increased vaccine skepticism and philosophical exemptions.
Declining vaccination rates have already resulted in measles outbreaks. In 2025, over 1,000 people in the US have been infected with measles, with over 100 hospitalizations and three deaths of unvaccinated children earlier in the year. The CDC recommends children receive one dose of the MMR vaccine around their first birthday and a second dose between ages 4 and 6. Pennsylvania requires both doses before kindergarten.
### How to Prepare
1. **Consult Healthcare Providers:** Discuss any concerns or questions about vaccines with doctors. 2. **Check Vaccination Status:** Ensure children and adults are up-to-date on their MMR vaccinations. 3. **Stay Informed:** Rely on reputable sources like the CDC and WHO for accurate information about vaccines.
### Who This Affects Most
Increased vaccine skepticism, philosophical exemptions, and disruptions caused by the COVID-19 pandemic have contributed to lower vaccination rates.
Herd immunity occurs when a large percentage of a community is immune to a disease, making the spread from person to person unlikely. For measles, a vaccination rate of 95% or higher is needed.
Measles can lead to serious complications, including pneumonia, encephalitis (brain swelling), and death.
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