Crowdsourced Cyclospora Watch

Last updated: August 28, 2026 at 05:27 AM UTC

Feeling sick or have a confirmed case of cyclospora? Submit your report here

164 responses collected so far. This is a self-reported, crowdsourced tracker built to try to spot patterns in the current multistate cyclospora outbreak — not an official CDC or state health department investigation. There is no control group, so results below are proportional reporting among people who got sick, not proof of cause. Treat this as “worth watching,” not “confirmed.”

Charts

Chart 1: Top Produce Leads by Signal Ratio

Sorted by signal ratio — how much more often cases report eating this compared to how often people eat it in an ordinary two-week period. A ratio above 1 means it’s showing up more than you’d expect from typical diets.

See Table 1 below for the full data, including confidence intervals.

Chart 2: Cases by State

This is a representation of the cases that have been self-reported in this survey. For the official case count, please refer to the CDC or your relevant state/local health department. See Table 2 below for the full state-by-state count.

Chart 3: Cases by Canadian Province

See Table 3 below for the full province-by-province count.

Chart 4: Epi Curve

See Table 4 below for the full date-by-date case counts.

Chart 5: Reddit Thread Parsed Sources

This is a hand-compiled tally of food/restaurant mentions from Reddit threads, kept separate from the statistical analysis above since it doesn’t have the per-person structure needed for the confidence intervals or signal ratios. Read as “what’s been mentioned together,” not as a statistical finding.

See Table 5 below for the full mention tally (all restaurants/foods, not just the top 15 shown here).

Data Tables

Table 1: Produce Signal Ratio (Full Data)

CI columns are a 95% confidence interval — small sample sizes mean wide ranges. If the “Ratio CI low” column is still above 1, that’s a stronger lead than the point estimate alone.

Table 2: Cases by State (Full Data)

Table 3: Cases by Canadian Province (Full Data)

Table 4: Epi Curve Data (Full Data)

Table 5: Reddit Mention Tally (Full Data)

Table 6: All Produce Mentioned

Table 7: Stores & Restaurants Mentioned

Table 8: Reported Symptom Duration

Cyclospora illness tends to run longer than most foodborne bugs (often weeks, sometimes relapsing). Short-duration reports are more likely something else.

How to read this page: a high signal ratio means the food is reported by sick people more than you’d expect from normal eating habits — that’s a lead worth watching, not a verdict. Small numbers (a food only 2-3 people mentioned) are noisy and easy to over-read. If something looks concerning and consistent, the right next step is reporting it to your local or state health department, who can do formal case-control interviews and trace product lots — this page can’t do that part.

Want to add your own report? Fill out the form here.