Disease Statistics

To detect an outbreak, it is essential to monitor illness levels within the community. When the number of illnesses rises above normal, public health professionals take action to control and prevent further spread until the outbreak is over. Follow the links on this page to explore local and national illness numbers.

Local Illness Numbers

Some diseases are required by law to be reported to the Southern Nevada Health District as soon as they are diagnosed by health care providers. The Health District collects all of this information and posts the data for public access. The common foodborne illnesses, such as salmonellosis caused by Salmonella, are organized under the heading “Enteric Diseases.” You can compare the numbers of illnesses from month to month or year to year. Please note, norovirus is not a reportable illness so the Health District cannot and does not track norovirus cases.

Local Illness Statistics

National Illness Numbers

For national numbers, the Centers for Disease Control and Prevention (CDC) tracks the number of outbreaks reported by each state through the National Outbreak Reporting System (NORS). On their NORS Dashboard, you can view outbreaks occurring across the nation and customize the map based on type of outbreak, time period, setting, and more.

National Illness Statistics

In the event of an outbreak, the Southern Nevada Health District will work with your business to identify appropriate corrective actions and precautions to end the outbreak quickly.

If you suspect that you might be experiencing an outbreak at your property, please reach out to the Health District immediately. The sooner we know about it, the sooner we can work together to help end it. You can call the Office of Epidemiology at (702) 759-1300 at any time, Environmental Health Foodborne Illness at (702) 759-1504, or your assigned inspector during business hours.

Contact Information

SNHD_EHoutbreakresponseteam@snhd.org
(702) 759-1504

Nevada Relay “Dial 711” (TTY)
After Hours & Public Health Emergencies
(702) 759-1000

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Outbreak Prevention and Response

Updated on: August 21, 2025