Third Outbreak-Linked Cyclosporiasis Case Reported in Clark County

A third Clark County resident has been reported among the travel-associated cyclosporiasis cases linked to an ongoing multistate outbreak, according to the Southern Nevada Health District and a July 31 report by FOX5 Las Vegas. Officials said there is no evidence that the latest case was acquired in Clark County or elsewhere in Nevada.

The Southern Nevada Health District’s case-count display shows nine confirmed cyclosporiasis cases in Clark County since Jan. 1, 2026. Three of those cases, including the newly reported case, are classified as travel-associated and linked to the multistate outbreak.

Local cases remain classified as travel-associated

The health district says no locally acquired Clark County cases linked to the ongoing outbreak have been reported. That distinction does not establish exposure through a Las Vegas-area restaurant, retailer, food supplier or other Nevada source.

The health district’s case-count display was last updated July 30, while the webpage itself was updated July 31. The district is using the dedicated cyclosporiasis webpage to post updated Clark County counts and investigation information.

What the national investigation involves

The Centers for Disease Control and Prevention and the U.S. Food and Drug Administration are investigating a multistate Cyclospora outbreak linked to recalled iceberg lettuce sourced from central Mexico. Taylor Farms de Mexico initiated the recall July 17. FDA says the recall includes certain Marketside products sold at Walmart, including 12- and 24-ounce iceberg salad packages and 8- and 16-ounce shredded-lettuce packages with specified July 18 through Aug. 3, 2026, best-if-used-by dates.

Federal officials have not established that the Clark County case was caused by the recalled lettuce. The local case is classified as travel-associated, and the Southern Nevada Health District has not reported a locally acquired outbreak-linked case in Clark County.

What Las Vegas-area consumers should do

Consumers should not eat recalled iceberg lettuce from Taylor Farms de Mexico. The CDC and FDA advise people to discard or return recalled products and clean and sanitize surfaces, containers and other items that touched the lettuce.

People who develop symptoms such as watery diarrhea, fatigue or loss of appetite should contact a health care provider. The CDC says patients may need to ask whether testing for Cyclospora is appropriate because routine stool tests do not always screen for the parasite.

Other symptoms can include weight loss, stomach cramps, bloating, increased gas and nausea. Symptoms can last for weeks or return after temporarily improving. This is general public-health information, not a diagnosis or individualized medical advice.

Where to watch for updates

The Southern Nevada Health District’s cyclosporiasis tracking page remains the local source for updated Clark County counts and investigation information. The federal investigation remains open, so local case totals and public-health guidance may change.

Sources

• Southern Nevada Health District: Cyclosporiasis
• FOX5 Las Vegas: Third outbreak-linked Cyclosporiasis case confirmed in Clark County
• CDC: Cyclospora Outbreak Linked to Iceberg Lettuce in 9 States
• FDA: Investigation of 9-State Outbreak of Cyclospora Illnesses: Iceberg Lettuce