News -- August 3, 2026: The first reported deaths associated with the ongoing nationwide Cyclospora outbreak have been announced, marking a significant development in what has become one of the largest foodborne illness investigations currently underway in the United States.
The Michigan Department of Health and Human Services confirmed that two individuals have died as part of the state's cyclosporiasis outbreak. According to health officials, both people had significant underlying health conditions that may have been impacted by the illness and dehydration. Officials have not released any additional information about the individuals, citing privacy protections. Both became ill before the voluntary recall of iceberg lettuce announced by the U.S. Food and Drug Administration (FDA) on July 17. Health officials also noted that death resulting from cyclosporiasis is uncommon in the United States.
A Nationwide Outbreak
While the deaths were reported in Michigan, the Cyclospora outbreak extends far beyond one state.
The Centers for Disease Control and Prevention (CDC) reports 6,707 laboratory-confirmed domestic cases of cyclosporiasis since May 1, 2026, and says it is aware of more than 11,500 additional reported illnesses that are pending confirmation or further investigation. Because outbreak investigations continue to evolve, those numbers are expected to change as additional laboratory testing and case reviews are completed.
The FDA and CDC continue to investigate multiple Cyclospora outbreaks occurring this summer. One major multistate investigation has linked a subset of illnesses to shredded iceberg lettuce sourced from central Mexico and recalled by Taylor Farms de Mexico. That investigation currently involves nine states: Illinois, Indiana, Kansas, Kentucky, Michigan, Ohio, Oklahoma, Pennsylvania, and West Virginia. Federal officials emphasize that this investigation represents only a portion of the Cyclospora illnesses reported nationwide, and other outbreaks remain under investigation.
What Is Cyclospora?
Cyclospora is a microscopic parasite that causes an intestinal illness known as cyclosporiasis. People become infected after consuming food or water contaminated with the parasite. Fresh produce, particularly when eaten raw, has been identified in previous outbreaks because it is difficult to remove contamination through routine washing alone.
Unlike many foodborne illnesses, Cyclospora is not spread directly from one person to another immediately after infection. The parasite must first mature in the environment before becoming infectious, making contaminated food or water the most common source of outbreaks.
Symptoms
Symptoms typically begin about one week after exposure and may include:
Watery diarrhea that can be severe or prolonged
Loss of appetite
Weight loss
Stomach cramps
Bloating
Nausea
Fatigue
Low-grade fever
Without treatment, symptoms can last for several weeks and may return after temporarily improving. Dehydration can become a serious complication, particularly for older adults, people with weakened immune systems, and those with underlying medical conditions.
Treatment
Cyclosporiasis is generally treatable with prescription antibiotics. Health officials encourage anyone experiencing prolonged watery diarrhea, especially after eating fresh produce or foods associated with current recalls, to seek medical attention rather than attempting to manage the illness at home. Early treatment can shorten the illness and help reduce complications.
What Consumers Should Know
Consumers should continue checking FDA recall notices and avoid consuming recalled products if they are still in their possession. Anyone who develops persistent diarrhea, signs of dehydration, or other symptoms consistent with cyclosporiasis should contact a healthcare provider.
Federal investigators continue working to determine whether additional food products or distribution channels are connected to the nationwide outbreak. As new laboratory results become available, case numbers and recommendations may continue to change.
The Investigation Continues
Today's announcement marks the first reported deaths associated with the 2026 Cyclospora outbreak, but public health officials stress that the investigation remains active. The CDC and FDA continue to work with state and local health departments to identify additional sources of contamination, monitor new illnesses, and prevent further spread of the parasite.
Health officials are expected to provide additional updates as the nationwide investigation continues.