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Connecticut

Connecticut Measles Cases in 2026

Last updated:

Moderate
3 cases

confirmed measles cases in Connecticut in 2026 (Connecticut Department of Public Health, Aug 24, 2026)

The JHU tracker separately lists 1 in its approximate 2026 view. Read the dated official state report.

Official report date 2026-08-24

Multiple measles cases have been reported. Check local health guidance for outbreak-specific instructions.

Direction unavailableDirection is unavailable because JHU does not provide at least two comparable statewide weekly reports.
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1 cases in 2025

Key Takeaways

  1. 1Connecticut Department of Public Health reported 3 confirmed measles cases in Connecticut in 2026 as of August 24, 2026.
  2. 2The JHU tracker separately assigns 1 to its approximate 2026 view; that tracker subtotal is not the official state count.
  3. 3Use local health department guidance for outbreak-specific instructions, school decisions, and exposure follow-up.
  4. 4Connecticut's kindergarten MMR coverage is 98.2%, which meets the 95% herd-immunity threshold.
  5. 5Recent 2026 county-level reports are listed below when public case detail is available.
  6. 6The current JHU tracker views for nearby states New York, Massachusetts, Rhode Island also include cases.

Practical Steps for This Signal

Measles cases reported — check your MMR vaccination

  • •Verify that you and your children have received 2 doses of MMR vaccine
  • •If you're not vaccinated, talk to your doctor about getting vaccinated now
  • •Watch for symptoms: high fever, cough, runny nose, red eyes, followed by a rash 3-5 days later
  • •If exposed, contact your doctor — post-exposure vaccination within 72 hours may prevent illness

These general steps pair Local Health Signal's interpretation of the reported public-health signal with CDC prevention guidance. They are not a personal risk assessment or medical advice. Talk to your healthcare provider about what's right for you and your family.

Source and context

How this page is built

Updated

Official state report: Aug 24, 2026; JHU tracker: Aug 24, 2026

Coverage

Dated official state report plus separate approximate JHU county tracker detail

Best For

Reading the dated official report alongside approximate county tracker context

The lead count comes from a dated official state report. JHU’s separate county rows are cumulative and its 2026 subtotal is approximate; it can differ from the official report. Neither source establishes formal outbreak status or city-level exposure. Check local guidance for urgent exposure decisions.

Methods →Data sources →Refresh cadence: Updated as new case reports are compiled

County Breakdown — Connecticut

CountyCasesLast Report
Hartford12026-08-24

County-level data from JHU Measles Tracking Team, limited here to reports dated in 2026. These approximate tracker rows do not partition the dated official state report.

MMR Vaccination Coverage in Connecticut

Kindergarten MMR coverage in Connecticut is 98.2%, meeting the 95% herd immunity threshold.

View Connecticut MMR coverage details →

Nearby States

Sources & Methods

Connecticut Department of Public Health report dated Aug 24, 2026 reported 3 confirmed measles cases in Connecticut in 2026.

The dated state health department report supplies the lead count. JHU separately compiles approximate state and county detail from public reports. County-level data may be incomplete. The CDC also publishes national measles case counts.Learn more about our methods.

More Health Data for Connecticut

Best Next Clicks for Connecticut

Useful next questions

Questions worth opening from the Connecticut measles page

Use these pages when you need outbreak context, help interpreting a low case count, or measles information for travel.

Cities in Connecticut

Health data available for these Connecticut cities:

Frequently Asked Questions

How many measles cases has Connecticut had in 2026?

Connecticut Department of Public Health reported 3 confirmed measles cases in Connecticut in 2026 as of August 24, 2026. The JHU tracker separately lists 1 in its approximate 2026 view. Counts may change as new cases are confirmed or reclassified.

Is there a measles outbreak in Connecticut?

Connecticut Department of Public Health reported 3 confirmed measles cases in Connecticut in 2026 as of August 24, 2026. This page does not determine formal outbreak status. Check your local health department for outbreak-specific guidance and exposure notices.

What is the MMR vaccine and why does coverage matter?

The MMR vaccine protects against measles, mumps, and rubella. Measles is highly contagious and requires approximately 95% community vaccination coverage to achieve herd immunity — the threshold at which enough people are immune to prevent sustained transmission.

Share this with someone who needs it

Local Health Signal is not affiliated with the CDC or any government agency. Data is provided for informational purposes only and is not intended for clinical decision making. See our methods page for details on data sources and limitations.