US health authorities have expanded their investigation into a cyclosporiasis outbreak linked to iceberg lettuce from central Mexico. Cases now span 20 states.
The Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC) announced the latest update on Thursday.
The outbreak involves iceberg lettuce served at Taco Bell restaurants. Taylor Farms supplied the lettuce from its operations in Mexico.
Three More States Join Investigation
Georgia, Tennessee and Texas have joined the list of affected states.
As a result, health officials now track cases across 20 states.
Meanwhile, authorities continue to monitor new reports as they investigate the outbreak’s source and spread.
More Than 11,000 Cases Reported
Health officials have linked the outbreak to 11,458 cases. So far, 495 people have required hospital treatment.
Cyclosporiasis develops when people ingest the Cyclospora cayetanensis parasite. The illness can cause diarrhea, nausea and other digestive symptoms.
Moreover, the outbreak ranks among the largest foodborne illness events in recent US history.
FDA Inspects Mexican Facilities
The FDA continues to investigate the source of the contamination.
Inspectors are visiting iceberg lettuce farms and a processing facility in Mexico. They are also collecting samples for further testing.
The FDA is working with Mexican officials during the investigation.
In addition, the agency said it believes retailers have removed all recalled iceberg lettuce from the market.
However, investigators will continue working with federal, state and international partners. Their goal is to establish how the contamination occurred and determine whether any further risks remain.
Michigan Reports Serious Impact
Michigan remains one of the hardest-hit states.
The Michigan health department has linked two deaths to the outbreak. Both people had significant underlying health conditions.
Meanwhile, Michigan has reported 14,510 cases connected to the cyclosporiasis outbreak.
That total represents an increase of 233 cases, or about 2%, since the state’s previous update.
Consumer Confidence Under Pressure
The outbreak has also raised concerns about the safety of fresh produce.
Because lettuce moves through complex supply chains, investigators must trace products across farms, processing facilities, restaurants and other businesses.
Therefore, health officials continue to examine records and test samples as they work to identify the source.
Investigation Remains Active
The FDA and CDC continue to track cases across the United States.
At the same time, investigators are examining lettuce production and processing operations in Mexico.
For now, officials will continue coordinating with state and international authorities. They aim to identify any remaining risks and prevent additional illnesses.
The investigation will also help health officials understand how the outbreak spread and strengthen food safety measures for the future.