Local Health Signal
South Dakota

What's Going Around in South Dakota?

Latest reported illness readings, with source dates and practical next steps.

Your weekly respiratory picture

The available readings are low. That does not mean nobody is sick.

South Dakota statewide surveillance. Three separate signals, with a date and source for each. Weekly reports lag behind infections.

Six reported weeks where available; each chart uses its own scale. Flu-like illness can be caused by several viruses. Hospital admissions do not count every infection. These are not personal risk scores.

A useful update for your group chat

The summary includes the readings, dates, sources, and statewide scope.

Your shareable briefing

Public readings for South Dakota. Your saved places and check history are not included.

Read or copy the text summary
Read the shareable summary

Measles and vaccination context

9 cases in the current state tracker view in the approximate statewide tracker. This is not a formal outbreak determination. Check measles dates and sources →

90% kindergarten MMR coverage (2024-25 school year) is annual prevention context, not a weekly spread signal.

Beyond the numbers

What can I do with this?

Weekly readings give context. Your symptoms and a healthcare provider’s advice matter more for personal decisions.

For everyday life

Bring in fresh air or use air filtration, wash your hands, and keep recommended immunizations up to date. A well-fitting mask adds protection in crowded indoor spaces.

CDC prevention guidance ↗
If you’re feeling sick

Stay home and away from others. Resume normal activities after both your symptoms have improved overall and you have been fever-free without fever-reducing medicine for at least 24 hours. Take extra precautions for the next 5 days. If you are at higher risk of severe illness, seek care promptly.

CDC guidance when sick ↗
Before visiting someone vulnerable

Postpone the visit if you are sick. Consider cleaner air, a well-fitting mask, and testing. Follow the person’s care team or facility guidance. A low community reading does not rule out infection.

CDC risk and prevention guidance ↗

General information for respiratory illnesses, not a diagnosis or personal medical advice. Trouble breathing or chest pain needs emergency medical care. Follow illness-specific guidance for measles and other infections.

Measles and long-term prevention

Measles

Moderate

9 cases in the current state tracker view

Use case count plus vaccination context together.

View details →

MMR Coverage

High

90% coverage

Long-run prevention signal, not a weekly spread metric.

View details →

Useful questions

Questions worth opening from the South Dakota overview

Get help interpreting the readings, understanding measles, or sharing this report.

State Page Guide

How Do I Read a State Health Page Fast?

A quick state-page guide for users who land on a statewide snapshot and need the fastest path into the right disease, city, update, or travel page.

Sharing Question

What Page Should I Send Someone Who Asks What’s Going Around?

A practical page for sharing the right Local Health Signal link the first time.

Measles Interpretation

Should I Worry About a Single Measles Case in My State?

A trust-preserving measles interpretation page that helps users react proportionately and click into the right state page next.

ARI Question

What Does Low Respiratory Activity Actually Mean?

A practical explanation of the low ARI label, built to keep state overview pages from making low overall activity sound like an all-clear.

What's Getting Better or Worse?

📈
Flu↗ Likely Growing
Details →➡️
COVID-19→ Stable
Details →

Based on CDC forecasting data as of 2026-10-13.

Source and context

Where this statewide view comes from

Source

Local Health Signal source library

Updated

Oct 17, 2026

Coverage

Statewide surveillance across flu, RSV, COVID-19, measles, and MMR

Best For

Fast statewide snapshot before drilling into a topic page

This overview combines multiple public-health feeds for South Dakota. It is best for getting the quickest cross-topic picture, while the disease-specific pages provide deeper charts, methodology, and comparisons.

Methods →Data sources →Refresh cadence: Weekly for respiratory topics; annual for MMR coverage

Nearby States

North DakotaMinnesotaIowaNebraskaWyomingMontana

Cities in South Dakota

Health data available for these South Dakota cities:

Sioux Falls

Frequently Asked Questions

What's going around in South Dakota right now?

Here is the fast statewide read for South Dakota: flu activity is low, RSV is low, COVID-19 is low, and the current JHU state tracker view lists 9 measles cases for South Dakota. Each topic page goes deeper when you need the detail.

Is the flu bad in South Dakota right now?

Flu activity in South Dakota is currently low with 0.6% ILI. Visit the South Dakota flu page for weekly trend charts, nearby state comparisons, and historical context.

Are there measles cases in South Dakota?

The JHU state tracker currently lists 9 measles cases for South Dakota in its 2026 view. The state's kindergarten MMR vaccination rate is 90%. See the measles tracker for county-level details and local-health-department guidance if you need outbreak-specific information.

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.