Michigan has reported more than 5,000 cases of cyclosporiasis, a record-breaking outbreak, as deep funding cuts to public health under the Trump administration hinder tracking and containment efforts. The state saw a 1,300-case increase from Wednesday to Friday, with 102 hospitalizations, compared to a typical annual tally of 40 to 50 cases. Natasha Bagdasarian, Michigan's chief medical executive, said, 'If we ignore the other states and just look at the Michigan numbers, already this is probably the biggest outbreak of cyclosporiasis in US history.'
Funding Cuts Weaken Surveillance and Response
The outbreak follows $12bn in public health funding cuts in March 2025, affecting laboratory capacity, disease monitoring, and outbreak investigation. Half of US states sued to claw back the funds, but delays and exclusions led to layoffs and furloughs. Michigan lost an entire regional laboratory and 23 employees in its infectious disease bureau, while local health departments lost 123 staff. Susan Kansagra, chief medical officer at the Association of State and Territorial Health Officials, said, 'If you're down one member of the soccer team, you might not be able to trace that back to every goal you lost, but you're going to see an impact.'
CDC Staff Reductions and Communication Gaps
The CDC has lost about one-third of its staff, with most permanent leadership positions empty. Bagdasarian noted that federal communication has been lacking: 'In previous outbreaks, we have received additional assistance from CDC, and we have not in this particular outbreak.' Public health advisories were delayed; the CDC issued a health notice to providers on Tuesday, two weeks after initial signals. Robert F. Kennedy Jr., HHS secretary, first commented on cyclosporiasis on Friday, downplaying the severity and denying cuts to surveillance programs.
Impact on Testing and Tracking
Cyclospora is often missed by doctors, and high testing costs deter patients. Bagdasarian said, 'Even people with insurance have been declining testing because of high copays, and there are many folks who are uninsured or underinsured because of federal cuts to Medicaid.' Michigan has about 2,000 samples awaiting sequencing at $122 per test, far exceeding its cyclospora budget. The administration made cyclospora optional for reporting to FoodNet, a national foodborne-illness tracker, further hampering trend identification.
Strained Workforce and Multiple Threats
Public health workers are juggling cyclosporiasis with other threats, including measles, mumps, pertussis, heatwaves, and wildfire smoke. Michigan staff have spent over 1,000 hours interviewing patients. Bagdasarian said, 'There is only so much bandwidth. There's only so much that we can pull from before other consequences are seen.' The outbreak is linked to lettuce from Taylor Farms, with the CDC identifying a shredded iceberg supplier in Mexico and Taco Bell as an affected restaurant. However, the contamination likely extends beyond one chain, affecting grocery stores as well.
