The record-setting cyclosporiasis outbreak in the United States is exposing weaknesses across the country’s food safety system. Local health departments, federal agencies and laboratories struggle with staffing shortages, reduced resources and disrupted coordination. More than 15,700 confirmed cases have been reported by the Centers for Disease Control and Prevention. The outbreak began in May and continues to affect communities across the country.

The outbreak has been largely associated with iceberg lettuce grown in Mexico. Federal investigators are focusing on lettuce supplied by Taylor Farms. The company voluntarily recalled potentially affected iceberg lettuce in July and suspended sourcing and production from central Mexico while investigations continued.

At the same time, public health specialists say the ability to investigate individual cases has been weakened. It is now harder to connect them to a common source due to years of pressure on state and local programs. Bob Custard, a longtime environmental health specialist and president of the West Virginia Association of Sanitarians, compared the situation to removing smoke detectors from a house and hoping a fire never starts.

The concern is not limited to one state or one agency. Foodborne illness investigations depend on information moving from local health departments to state authorities and eventually to federal agencies. When staffing or reporting capacity breaks down at any point, investigators can lose valuable time.

Cyclosporiasis outbreak exposes state and local staffing shortages

The pressure is particularly visible in local food safety programs, which depend heavily on federal grants and support. The material reviewed for this report says the CDC’s grants were cut by 40%. That cut represented about $5.8 billion, while the effects varied from state to state.

Kentucky reported that its food safety staff had fallen by between 30% and 50%. Ohio said its response to Cyclospora had not been affected by staffing reductions. In contrast, Michigan, which has recorded the highest caseload, successfully challenged federal grant cuts in court. This action allowed disease surveillance, investigations, reporting and public messaging to continue for the time being.

West Virginia illustrates a different part of the problem. Custard said one growing county that previously employed four full-time sanitarians had fallen to two. The county also lost its only epidemiologist, whose responsibilities included investigating foodborne illnesses.

Custard said roughly half of the positions in West Virginia’s food safety organization chart were vacant. In March, state lawmakers also reduced the educational requirement for sanitarians from four years of college to a two-year associate’s degree. He criticized this change because of the scientific knowledge required for the job.

The consequences extend beyond the number of people available to conduct interviews. Foodborne illness investigations require epidemiological expertise, laboratory capacity, environmental inspections and communication between multiple jurisdictions.

Sarah Sorscher, director of regulatory affairs at the Center for Science in the Public Interest, described delays and uncertainty in resolving outbreaks as symptoms of a broader crisis affecting state and local public health departments. The lack of timely information can also leave consumers uncertain about which foods are safe.

Federal coordination and laboratory capacity under pressure

Former FDA official Susan Mayne said the federal response to the outbreak has demonstrated problems within the country’s food safety infrastructure. She said teams responsible for public-awareness campaigns and international crisis coordination were eliminated during sweeping federal cuts. This potentially disrupted relationships needed to investigate foodborne illnesses involving imported products.

The federal government disputes some of those concerns. The Department of Health and Human Services said staff within the FDA’s Human Foods Program who work with foreign regulatory counterparts had been reinstated. The FDA also said it continues to work with federal, state and international partners. It deploys personnel according to public health priorities.

The investigation also depends on specialized scientific expertise. Mayne said FDA personnel historically worked with CDC microbiologists and epidemiologists studying Cyclospora and other parasites. Funding previously associated with the U.S. Agency for International Development supported some of that work, according to the material reviewed for this report.

Former CDC epidemiologist Dan Jernigan said the agency’s parasite laboratories traditionally helped states identify pathogens and genetically sequence organisms. He said staffing losses had forced laboratories to prioritize the largest multistate outbreaks. Therefore, they no longer provide the same level of assistance to every jurisdiction reporting Cyclospora. HHS, however, said the CDC laboratory supporting the Cyclospora response was not affected by reductions in force.

The USDA’s research infrastructure has also come under scrutiny. The agency operated two parasitology laboratories at its Beltsville, Maryland, research center that conducted Cyclospora research. According to internal communications reviewed by the reporting organization, employees were instructed to relocate to other research centers or leave their positions. A staff member said work at the two laboratories had effectively halted during the summer. USDA disputed that characterization, saying Cyclospora research continued without disruption.

For current disease surveillance information, the CDC maintains national reporting data at FDA Human Foods Program.

Traceability gaps could complicate future outbreaks

Public health experts are also concerned about changes to foodborne illness surveillance. Jernigan said the CDC removed Cyclospora and five other pathogens from active tracking through FoodNet last year. FoodNet had provided detailed information intended to help officials determine whether foodborne illnesses were becoming more or less common over time.

Another issue involves food traceability. Mayne pointed to a food traceability rule enacted in 2011 whose implementation was delayed. The rule is intended to create records that can help investigators trace produce back toward its source and forward through the distribution chain.

That distinction matters during a large outbreak. Investigators need to determine not only where contaminated food originated, but also where other potentially affected products were distributed. Better records can allow health authorities and companies to narrow the scope of a recall. They would not need to rely only on broader measures.

The outbreak has also highlighted the complexity of tracing imported produce. Federal investigators have focused on iceberg lettuce from central Mexico, while Mexican authorities later reported negative Cyclospora results in samples collected from Taylor Farms facilities. That means the epidemiological evidence and laboratory findings require careful interpretation. Authorities cannot treat a suspected source as definitively proven.

The FDA’s food safety resources provide additional information through FDA Food Safety, while CDC’s broader surveillance infrastructure is available through National Notifiable Diseases Surveillance System.

The central concern raised by the experts is therefore broader than the current outbreak. A foodborne illness response depends on functioning surveillance, trained investigators, laboratory expertise, international cooperation and reliable traceability. When those components lose capacity at the same time, identifying a source can take longer. Public warnings can become less precise and contaminated products may remain in circulation for longer.