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CDC Cyclospora Lettuce Outbreak Hits Record As Businesses See Drop In Lettuce Demand
As of Friday, July 24, 2026, the CDC reports more than 4,100 laboratory-confirmed cyclospora cases since May 1 and is investigating over 7,400 additional likely cases across 41 states.[1]
Federal traceback work and CDC and FDA advisories have linked shredded iceberg lettuce served at Taco Bell in several states to a multistate cluster tied to 1,947 cases and at least 98 hospitalizations.[1] Taylor Farms was identified in FDA traceback and has voluntarily pulled iceberg lettuce from the implicated central Mexico region; the company has reportedly closed the Mexican processing plant.[2] Michigan health officials reported 7,664 confirmed cases in the state on Thursday, July 23, 2026.[2]
CDC surveillance recorded 145 domestically acquired cyclospora cases across 17 states with illness onset from May 1 through June 16, 2026. Michigan reported a Monroe County cluster beginning June 22 that expanded statewide and led investigators to conduct more than 1,000 patient interviews where lettuce or salad greens repeatedly appeared.[3] Officials initially could not name a single food source, and cuts to CDC surveillance after 2025 complicated tracing of the outbreak.[4]
Early mainstream coverage emphasized food-safety tips and noted no confirmed source while health officials expanded patient interviews.[5] By July 16-17, investigative traceback work and reporting in CBS and PBS linked a major cluster to Taco Bell restaurants that received iceberg lettuce from Taylor Farms, prompting the supplier to pull the product.[6] The outbreak has affected businesses: Taco Bell visits fell 29.8% on Saturday, July 18, and some grocers said lettuce sales dropped about 11%.[7]
The mainstream summary does not mention that Cyclospora is often linked to contaminated fresh produce and that standard washing methods may not effectively remove it, as highlighted by medical expert @drterrysimpson. This raises concerns about the adequacy of food safety practices in mitigating the outbreak, suggesting that the issue may be more complex than simply identifying a source. Additionally, @Supermansings, an ER doctor, reports a growing number of local cases in Indiana and implies that the outbreak's true scale could be underestimated, indicating that the official counts may not fully capture the extent of the crisis.
While the summary notes a significant drop in Taco Bell visits and lettuce sales, it lacks details about the Michigan outbreak's severity, where health officials have urged residents to avoid bagged lettuce and salad mixes amidst rising case numbers. @Grimillionaire's observations about the FDA and CDC's ongoing investigations into multiple produce items, without naming specific suppliers, underscore the uncertainty surrounding the outbreak and the potential for further public health risks. This context suggests that the impact of the outbreak extends beyond immediate business losses, affecting consumer trust and safety perceptions regarding fresh produce.
Show source details & analysis (26 sources)
📌 Key Facts
- As of Friday, July 24, 2026, the CDC reports that there are more than 4,100 laboratory-confirmed cyclospora cases since May 1 and is investigating over 7,400 additional likely cases across 41 states (more than 4,100 laboratory-confirmed cyclospora cases).
- As of Thursday, July 23, 2026, Michigan health officials reported 7,664 confirmed cyclosporiasis cases in the state, a toll that far exceeds earlier national confirmed-case figures (Michigan health officials).
- Federal traceback work and CDC/FDA advisories have linked shredded iceberg lettuce from Mexico served at Taco Bell locations in Indiana, Kentucky, Michigan, Ohio and West Virginia as a source of a large multistate cluster (Taco Bell locations).
- FDA traceback investigators identified produce supplier Taylor Farms as connected to the Taco Bell-linked cluster; Taylor Farms has voluntarily pulled iceberg lettuce sourced from a Central Mexico region and reportedly shut down the implicated Mexican processing plant (Taylor Farms).
- As of Friday, July 24, 2026, the CDC counts 1,947 cyclospora cases tied specifically to shredded iceberg lettuce at Taco Bell restaurants, including at least 98 hospitalizations and no reported deaths (1,947 cyclospora cases).
- Authorities emphasize the probe is ongoing, other brands/retailers/distribution channels could still be implicated, and the FDA has opened a separate traceback into a new 72-case cyclospora outbreak where the contaminated product has not yet been identified (new 72-case cyclospora outbreak).
- The outbreak has affected consumer behavior and businesses: Placer.ai data show visits to Taco Bell were down 29.8% on Saturday, July 18, 2026, several salad and bakery‑café chains reported traffic declines, and some grocers (Stew Leonard's) reported lettuce sales down about 11% amid customer concern and menu adjustments such as Taco Bell temporarily removing certain lettuce ingredients (visits to Taco Bell were down 29.8%).
📰 Source Timeline (26)
Follow how coverage of this story developed over time
July 24, 2026
8:45 PM
WATCH: Trump touts new nuclear reactors in his push to speed up domestic power
New information:
- In Oval Office remarks on July 24, 2026, President Trump said his administration is "going to put a major tariff" on Mexico "because of the lettuce" tied to the ongoing Cyclospora outbreak linked to Mexican‑sourced iceberg lettuce.
- In the same exchange, Trump also said he would "put a big tariff on Canada because of the smoke" from Canadian wildfires affecting U.S. air quality, signaling possible trade actions linked to environmental and public‑health issues.
5:45 PM
Here is how cyclospora outbreak is affecting businesses
New information:
- Placer.ai foot-traffic data show that on Saturday, July 18, 2026, visits to Taco Bell locations were down 29.8% versus an average Saturday between January 1 and July 6.
- On July 18, 2026, visits to Chopt were down 24%, Panera Bread 9.1%, and both Cava and Sweetgreen 4.7% compared with that earlier Saturday average window.
- Stew Leonard's reports lettuce sales down about 11% across its eight grocery stores in New York, New Jersey and Connecticut since the cyclospora outbreak intensified.
- Stew Leonard Jr. says customers on store floors are confused and asking whether lettuce is safe to eat, and he recommends hydroponic lettuce grown in controlled greenhouse conditions.
- Sweetgreen posted on X that it has not been identified in connection with the current cyclospora outbreak and said its food safety team is closely monitoring the situation.
- On Wednesday, July 22, 2026, Taco Bell promoted $1 lettuce-free enchiritos on Instagram, without explicitly linking the offer to the outbreak.
4:39 PM
Outbreak of diarrhea-causing parasite linked to 4 more states
New information:
- On Friday, July 24, 2026, CDC said the Taco Bell-linked cyclospora outbreak tied to shredded lettuce now also includes Illinois, Kansas, Oklahoma and Pennsylvania, expanding the cluster to nine states.
- CDC now counts 1,947 cyclospora cases linked specifically to lettuce served at Taco Bell restaurants, including at least 98 hospitalizations and no reported deaths.
- The FDA announced on Thursday, July 23, 2026, that it is investigating a separate cyclospora outbreak involving 72 reported illnesses where the contaminated product has not yet been identified.
- CDC reports that since May 1, 2026, it has received more than 4,100 laboratory-confirmed cyclospora cases and is investigating over 7,400 additional likely cases across 41 states, the highest U.S. cyclospora total on record.
- Mexico’s health ministry said on Thursday, July 23, 2026, that testing of 10 iceberg lettuce samples and four water samples collected July 18‑20 at Taylor Farms’ Guanajuato plant did not detect cyclospora.
1:45 PM
Cyclospora outbreak linked to iceberg lettuce expands to 4 more states
New information:
- On Friday, July 24, 2026, the U.S. Department of Health and Human Services confirmed to CBS News that the cyclospora outbreak linked to shredded iceberg lettuce from central Mexico has expanded to four additional states.
- The newly linked states are Illinois, Kansas, Oklahoma and Pennsylvania, bringing the total number of states affected by the lettuce-linked cyclosporiasis outbreak to nine.
- The outbreak was already described by officials as the nation's largest cyclosporiasis outbreak before this multi-state expansion was confirmed.
July 23, 2026
11:29 PM
Taylor Farms reportedly shut down Mexican processing facility linked to cyclospora outbreak
New information:
- On Thursday, July 23, 2026, CBS reported that Taylor Farms has shut down the Mexican processing plant where lettuce is suspected to have originated in the initial Taco Bell-linked cyclospora outbreak.
- The CBS segment reiterates that U.S. health officials are also investigating an additional cyclospora outbreak whose food source has not yet been identified, alongside the previously reported Taco Bell lettuce cluster.
- The report characterizes the first outbreak as having sickened thousands of people across at least 41 U.S. states.
7:42 PM
U.S. health officials investigate new outbreak of parasite cyclospora
New information:
- As of Wednesday, July 22, 2026, federal officials reported 72 cases in a newly identified cyclospora outbreak that is separate from the Taylor Farms-linked multistate outbreak.
- The Food and Drug Administration has not yet identified which specific products are linked to this new 72-case outbreak and has not disclosed where the associated cases are located.
- Federal officials reiterated earlier in the week that they remain focused on lettuce from Taylor Farms as the source of the separate multistate cyclospora outbreak, following Taylor Farms' recall of iceberg lettuce grown in central Mexico.
- The article restates CDC guidance that cyclospora infection causes intestinal illness with 'frequent and sometimes explosive bowel movements' and notes experts advise cooking produce to at least 158 degrees Fahrenheit (70 Celsius) to kill the parasite.
4:26 PM
FDA says new cyclospora outbreak linked to unspecified product
New information:
- On Thursday, July 23, 2026, the FDA said it has identified a new cyclospora outbreak tied to an unspecified food product and has begun a traceback investigation to find the source.
- An FDA spokesperson told CBS News on July 23 that this new outbreak's source is "not yet identified" and described the probe as an active investigation with updates to come.
- The FDA said this new outbreak is in addition to several ongoing cyclospora investigations, including the Taylor Farms iceberg lettuce-linked cluster and another separate outbreak with at least 10 cases plus a concluded but still-under-investigation event.
- The CDC now reports 1,645 confirmed cyclosporiasis cases in the U.S. since May 1, 2026, including 141 hospitalizations, and says it is aware of more than 5,100 additional cases that still require analysis.
- Michigan health officials reported on July 23 that the state alone has 7,664 confirmed cyclosporiasis cases, far exceeding earlier national confirmed-case figures cited by CDC.
July 22, 2026
12:46 PM
RFK Jr. says cyclosporiasis outbreak "under control" as CDC reports over 4,000 confirmed cases
New information:
- On Tuesday, July 21, 2026, HHS Secretary Robert F. Kennedy Jr. said the cyclosporiasis outbreak is 'under control.'
- Kennedy asserted that last year's federal budget cuts had no impact on the government's cyclosporiasis investigation.
- The CDC is now reporting more than 4,000 confirmed cyclosporiasis cases in 41 U.S. states, according to the CBS report published July 22, 2026.
July 17, 2026
11:31 PM
FDA identifies potential culprit in cyclosporiasis outbreak as illness spreads nationwide
New information:
- The CBS segment on Friday, July 17, 2026, states that authorities have traced the cyclosporiasis outbreak to Mexican-grown lettuce delivered to Taco Bell by Taylor Farms.
- It reiterates that the implicated product is lettuce grown in Mexico, narrowing the geographic origin within Taylor Farms' supply chain beyond 'Central Mexico' language in prior coverage.
10:51 PM
What to know about the cyclosporiasis outbreak as Taylor Farms pulls iceberg lettuce
New information:
- On Friday, July 17, 2026, CBS reported that produce supplier Taylor Farms was voluntarily recalling iceberg lettuce after it was linked to a nationwide cyclosporiasis outbreak.
- CBS framed the development in an interview segment with medical correspondent Dr. Céline Gounder, who provided an updated on-air explanation of the outbreak and recall for U.S. viewers.
8:54 PM
Taylor Farms voluntarily pulls iceberg lettuce linked to cyclosporiasis outbreak
New information:
- On Friday, July 17, 2026, Taylor Farms said it was voluntarily pulling its iceberg lettuce after it was linked to a nationwide cyclosporiasis outbreak.
- CBS framed the action specifically as a response to the lettuce being linked not just to a regional cluster but to the broader nationwide outbreak.
- The report reiterates that Taylor Farms is the supplier at issue and emphasizes that the company itself publicly announced the voluntary pullback on July 17.
8:29 PM
Taylor Farms pulls iceberg lettuce linked to cyclosporiasis outbreak
New information:
- On Friday, July 17, 2026, Taylor Farms said it is "voluntarily removing" all iceberg lettuce sourced from a region of Central Mexico that FDA traceback has linked to the cyclosporiasis outbreak.
- Taylor Farms stated that FDA traceback points to a specific independent farm in Central Mexico representing less than 1% of U.S. iceberg lettuce supply but said it has removed all iceberg lettuce from that region indefinitely.
- Taylor Farms said none of its branded salads or salad kits contain iceberg lettuce or are associated with this outbreak.
- Taco Bell said Friday afternoon it had already removed the potentially contaminated Taylor Farms iceberg lettuce from restaurants in the affected states "out of an abundance of caution" and urged other operators to do the same.
- The article reiterates that the implicated iceberg lettuce from Taylor Farms was distributed to Taco Bell restaurants in Indiana, Kentucky, Michigan, Ohio and West Virginia, and notes that FDA's traceback investigation found this lettuce to be the sole source of the illnesses.
- The CDC now reports at least 1,644 illnesses across 34 states linked to the outbreak, while Michigan's health department reports more than 5,000 confirmed cases as of Friday, July 17, 2026, with no deaths reported.
5:04 PM
Iceberg lettuce at Taco Bell linked to cyclospora outbreak in 5 states
New information:
- On July 17, 2026, CDC and FDA advised consumers to avoid shredded iceberg lettuce at Taco Bell locations in Indiana, Kentucky, Michigan, Ohio and West Virginia and reported that more than 1,644 people in this multistate cyclospora outbreak had eaten at Taco Bell in those states since May 13, 2026.
- Michigan health officials analyzed 190 cyclospora cases in which patients reported eating at Taco Bell; 90% of those patients said they ate iceberg lettuce.
- FDA traceback work traced this large cluster to a single unnamed supplier of contaminated iceberg lettuce from Mexico and is working with that supplier to identify other distribution points, while noting this is one major epidemiologically linked cluster among multiple clusters nationwide.
- The outbreak now includes cases in 34 U.S. states and has led to 94 hospitalizations with no deaths reported as of July 17, 2026.
- On July 16, 2026, Taco Bell stated it had voluntarily removed potentially impacted lettuce from the supplier in select states and pledged to remove iceberg lettuce from its nationwide supply chain and replace it within 24 hours.
- NPR reports that an unnamed federal official told the Associated Press that Taylor Farms was the supplier, but NPR emphasizes it has not independently confirmed this and that FDA has not publicly named the company.
3:28 PM
Diarrhea-causing parasite outbreak possibly tied to iceberg lettuce from Mexico
New information:
- In a CBS segment published Friday, July 17, 2026, FDA investigators said they believe iceberg lettuce imported from Mexico may be the source of the current U.S. cyclosporiasis outbreak.
- The report characterizes the Mexico-grown iceberg lettuce as the suspected vehicle behind the spread of the diarrhea-causing parasite Cyclospora.
1:58 PM
Lettuce at Taco Bell in 5 states confirmed as a source of diarrhea-causing parasite
New information:
- Late Thursday, July 16, 2026, the CDC warned consumers not to eat shredded iceberg lettuce from Taco Bell restaurants in Indiana, Kentucky, Michigan, Ohio and West Virginia.
- The CDC and FDA confirmed that lettuce from Mexico served at Taco Bell locations in those five states is a source of the current cyclospora outbreak.
- A federal official briefed on the investigation told the Associated Press that the iceberg lettuce supplier identified in the FDA traceback is Taylor Farms of Salinas, California.
- CDC said Taco Bell has committed to stop using any lettuce from the supplier identified by FDA’s traceback investigation.
- Federal officials noted that other brands, restaurants, retailers or distribution channels could still be identified as the investigation continues.
- Current state data show cyclospora infections this year have already surpassed the prior U.S. record of about 4,700 cases set in 2019.
12:36 PM
Lettuce supplier for Taco Bell investigated as possible source for cyclosporiasis outbreak
New information:
- On Friday, July 17, 2026, CBS reported that the FDA has identified a single iceberg-lettuce supplier from Mexico used by Taco Bell in five U.S. states with reported illnesses as the possible source of the cyclosporiasis outbreak.
- The CBS segment emphasizes that this supplier-provided iceberg lettuce is specifically tied to Taco Bell restaurants in those five affected states, reinforcing the traceback link between the supplier, the chain, and patient reports.
12:19 AM
FDA identifies likely source of lettuce containing diarrhea-causing parasite
New information:
- On Thursday, July 16, 2026, CBS reported that the FDA has identified Taylor Farms as the likely source of lettuce contaminated with Cyclospora in the ongoing cyclosporiasis outbreak.
- The CBS segment characterizes Taylor Farms not just as a company under investigation but as the likely source of the contaminated lettuce.
July 16, 2026
11:30 PM
Cyclosporiasis outbreak possibly traced to lettuce from Mexico used by Taco Bell
New information:
- On Thursday, July 16, 2026, a source told CBS that an FDA traceback investigation has identified a single iceberg lettuce supplier from Mexico, Taylor Farms, used by Taco Bell locations in five states where cyclosporiasis patients ate.
- The FDA is actively investigating Taylor Farms as a possible source of the outbreak, though the connection has not yet been officially confirmed.
- As of the latest CDC update cited in the article, the outbreak has sickened at least 1,645 people across 34 states, including at least 141 hospitalizations.
- Michigan health officials reported on July 16, 2026, that the state has at least 4,312 confirmed cyclosporiasis cases and 102 hospitalizations, substantially higher than earlier reported figures.
- Earlier this week, Taco Bell said it had voluntarily and temporarily removed limited ingredients at select restaurants as a precaution due to the outbreak.
- The report notes that Taylor Farms previously supplied onions linked to an E. coli outbreak that affected several restaurants in 2025, including McDonald's.
July 15, 2026
1:23 PM
How to protect yourself from the diarrhea-causing parasite as cyclosporiasis cases rise
New information:
- The July 15, 2026 CBS segment reiterates that federal and state health officials are actively investigating the source of the ongoing U.S. cyclosporiasis outbreak.
- The piece emphasizes practical individual-level protection measures against Cyclospora infection, framing them as timely guidance while the investigation continues.
- The segment confirms that officials continue to see rising U.S. cyclosporiasis case numbers and have not yet identified a single confirmed food source.
July 14, 2026
11:49 PM
CDC looking into several items potentially linked to cyclospora parasite
New information:
- As of Tuesday, July 14, 2026, nearly 7,000 people in 34 U.S. states have reported symptoms tied to the current cyclosporiasis outbreak.
- The CDC is actively investigating several potential food items as possible sources of the cyclospora parasite, but no official source has yet been confirmed.
- CBS describes the suspected links as under review rather than established, underscoring that the outbreak's precise origin remains unidentified as of July 14, 2026.
10:26 PM
Taco Bell taking precautionary measures as cyclosporiasis outbreak spreads in Michigan
New information:
- On Tuesday, July 14, 2026, Michigan officials reported the state's cyclosporiasis outbreak had intensified to 3,300 identified cases and 44 hospitalizations.
- On July 14, 2026, Taco Bell told CBS News it has voluntarily and temporarily removed limited ingredients at select restaurants as a precautionary measure in response to the outbreak.
- The article reinforces that the Michigan cluster remains a central focus of the national 2026 cyclosporiasis surge and that investigators are still working to determine the precise cause of spread.
7:54 PM
Cyclosporiasis infections are surging. Michigan officials say lettuce is a possible cause
New information:
- On Tuesday, July 14, 2026, federal health officials said cyclospora infections reported so far this year from more than 30 states already exceed the previous U.S. record of about 4,700 cases set in 2019.
- Federal officials said they believe cyclosporiasis cases in at least four states—Michigan, Ohio, Kentucky and West Virginia—are linked, while patterns may differ elsewhere.
- Michigan’s chief medical executive Natasha Bagdasarian said investigators have conducted more than 1,000 patient interviews and that lettuce or salad greens are the common product most consistently appearing in those interviews.
- Michigan health officials are now specifically advising consumers to buy whole heads of lettuce, discard outer leaves, and avoid bagged lettuce and pre-mixed salad kits as a precaution.
- Taco Bell said on Tuesday, July 14, 2026, that it has voluntarily and temporarily removed certain ingredients at select restaurants as a precaution while officials investigate possible links, though FDA officials declined to confirm whether specific vendors are under scrutiny.
- FDA acting food chief Donald Prater said the agency is conducting traceback investigations on multiple produce items and locations reported by patients prior to illness.
7:45 PM
Cyclospora outbreak leaves consumers guessing which foods are safe
New information:
- On Monday, July 13, 2026, Michigan health officials issued guidance saying current results point to lettuce or salad greens as a potential source of the cyclosporiasis outbreak, while stressing other foods cannot yet be ruled out.
- The July 13 Michigan statement advised consumers to prefer whole heads of lettuce over pre-washed bagged salad mixes but did not name any specific producer or retailer.
- On Tuesday, July 14, 2026, Taco Bell said it has 'voluntarily and temporarily removed limited ingredients at select restaurants as a precautionary measure' while federal and local officials investigate possible links between some customer illnesses and the broader outbreak.
- Taco Bell told CBS News that public health officials have not confirmed any connection between cyclosporiasis cases and its restaurants, ingredients, suppliers or other specific retail sources as of July 14, 2026.
- Experts in the article note that CDC scaled back mandatory Cyclospora surveillance in July 2025 by ending required FoodNet reporting, and that CDC staff cuts in 2025 reduced capacity to quickly identify and trace foodborne outbreaks like the current one.
- Public health experts quoted in the piece recommend consumers avoid uncooked fresh produce that cannot be peeled until a source is found and warn that the lack of an official recall has fueled misdirected speculation against particular stores and brands online.
July 10, 2026
3:49 PM
Michigan's cyclosporiasis outbreak grows to more than 1,500 cases
New information:
- As of Friday, July 10, 2026, MDHHS reports 1,562 cyclosporiasis cases in Michigan since June 22, up from earlier tallies around 1,500.
- MDHHS reports 44 hospitalizations associated with the outbreak as of July 10, 2026.
- Cases have now been confirmed in 40 Michigan counties, with Monroe County reporting the highest count at 215 cases.
- MDHHS has launched a dedicated cyclosporiasis outbreak webpage where case counts are updated daily by 11 a.m. Eastern, with hospitalization status and detailed data updated on Thursdays.
- State health officials are specifically urging restaurants and commercial kitchens in Southeast Michigan to take extra precautions with fresh produce, including thorough washing and cooking when possible.
3:13 PM
What you need to know about the cyclosporiasis outbreak
New information:
- As of Friday, July 10, 2026, Michigan is reporting more than 1,500 cyclosporiasis cases, with neighboring Ohio reporting hundreds more.
- PBS reports that more than two dozen other U.S. states have active investigations into cyclosporiasis illnesses, according to the CDC.
- The article notes that in 2025 the CDC made state reporting of cyclospora optional when it scaled back its Foodborne Diseases Active Surveillance Network, complicating current outbreak tracking.
- PBS emphasizes that cyclosporiasis is generally not fatal but can cause explosive diarrhea lasting from a few days to more than a month, along with nausea, fatigue and bloating.
- CDC and health officials reiterate that a specific food source for the 2026 outbreak has not yet been identified and outline detailed food-handling steps such as preferring whole heads of lettuce, thoroughly washing herbs, and cooking vegetables to at least 158°F to kill cyclospora.
July 08, 2026