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The early days of the cyclospora outbreak were dominated by uncertainty about what was safe to eat and what wasn't, with both social and traditional media filled with speculation and panic-inducing headlines. 

Why it matters: Today's media ecosystem abhors a vacuum. Whenever there's a lack of official, verifiable information, speculation and  disinformation will rush in.

Catch up quick: In late June, news articles describing an outbreak of a mysterious "explosive diarrhea" causing parasite immediately went viral — the stuff of meme gold.

A timeline tracks key events in the cyclospora outbreak from June 30 to Aug. 9, 2026. Events include CDC and FDA investigations, Taco Bell ingredient pulls on July 14, a Taylor Farms recall on July 17 and Michigan reporting two deaths on Aug. 3.

Select cyclospora outbreak events

Data: Axios research; Chart: Sara Wise/Axios

Zoom in: The CDC surveillance page for cyclospora initially offered scant information — no actionable steps on how the disease spread or how consumers could prevent it. 

On July 1, Michigan state authorities put out an advisory on the ongoing investigation but noted they hadn't identified a cause yet.

On social media, the scene was much different: first-person accounts of what the disease was like and people identifying fruits, herbs and vegetables that had been linked to previous outbreaks, including berries and cilantro.

Others cast blame and made claims without any scientific backing, racking up huge engagement.

What they're saying: "People in general — the general public, reporters — all want information much faster than science can actually provide it," says Scott Lusk, managing director of Signal Health. 

"The irony is social media is both essential to reaching people and it's also one of the places people say they trust the least," he says.

The big picture: The information vacuum turned this into a much wider crisis. 

"We were all worried about what we could eat," says Melissa Mahoney, executive vice president at V2 Communications. "That is a crisis for every company operating in that realm." 

Yes, but: Some brands used this moment to highlight what makes them different. 

Little Leaf Farms put out a series of videos on Instagram, including one that featured its CEO touring a greenhouse and explaining why its hydroponically grown lettuce wasn't impacted by the outbreak. 

The video racked up over 25,000 likes, vastly outperforming its previous videos which historical netted a few hundred likes.

Zoom out: Once a crisis moves beyond the initial response, communications becomes a coordination job across legal, government affairs, investor relations, operations and reputation.

An FDA investigation, potential congressional inquiry and declining restaurant sales are all stakeholder challenges that communicators need to understand and speak to.

Cyclospora is a case study in the expanded mandate for communicators, who need to recognize how the same issue lands with different constituencies.

"How you talk to an investor versus how you talk to a consumer versus how you talk to a regulator" can vary, says Loren Riegelhaupt, partner and president at SKDK and co-lead of the health practice, "but the facts can't vary."

Reality check: "A communicator standing by themselves trying to manage this issue will fail," V2 Communications' Mahoney says.

"Understanding what is happening deep inside the business is really important. As a head of communications, the last thing you want to be is surprised," she says.

The best way to avoid surprises is building deep relationships with the CFO, general counsel and other leaders across the organization.

What we're watching: Once the dust settles, it's time to debrief and assess what needs to change, including:

Did we know who to call at government agencies?

What could be prepared in advance? (i.e, crisis landing sites, FAQs, social graphics and explainers)

There's a new addition to the checklist: the AI GEO angle.

Companies should consider how crisis information is structured online so that it can be easily found and accurately surfaced by AI tools, which might mean avoiding attachments or downloads, said Signal Health's Lusk.

The bottom line: Communicators may not control when the facts emerge, but they do control how quickly and credibly they respond.

The modern CCO needs the legal, financial and political fluency — and internal relationships — to help shape decisions before they become public and to carry out a thorough review after the fact.

Cyclospora outbreak highlights risks of information vacuums

Whenever there's a lack of official, verifiable information, speculation and  disinformation will rush in.

Illustrated collage of fingers pointing at each other on a textured background surrounded by abstract lines and microscopic cell imagery. 

Illustration: Aïda Amer/Axios. Stock: Getty Images

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Cyclospora outbreak highlights risks of information vacuums

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