Cluster Emerges from Family Event (Image Credits: Unsplash)
Hunter New England, New South Wales – Public health officials probed a cluster of Campylobacter jejuni infections tied to a family gathering at a local restaurant in mid-July 2025. Authorities identified seven illnesses among attendees, with duck liver pâté standing out as the probable source. Flaws in the food’s preparation process, including risks of undercooking and contamination, came under scrutiny during the investigation.[1][2]
Cluster Emerges from Family Event
The Hunter New England Public Health Unit received reports of gastroenteritis cases in late July 2025. These stemmed from a private event on July 13 involving 26 people. Health workers defined confirmed cases as attendees who developed diarrhea—at least three loose stools in 24 hours—or stomach cramps with fever within 10 days of the meal. Probable cases involved stomach cramps alone within that window.
Surveys reached 23 of the 26 attendees, a response rate of nearly 89 percent. All seven affected individuals replied. No additional illnesses surfaced among roughly 60 other diners and staff present that day. A broader review of 43 campylobacteriosis notifications in the area from July 13 to 31 turned up no further links to the venue.[1]
Epidemiology Points to High-Risk Dish
Analysis of menu consumption revealed strong associations between illness and specific items. Every case had eaten the duck liver pâté, known as pâté de canard. The attack rate among those who consumed it reached 46.7 percent, with seven cases out of 15 exposed and zero among eight unexposed.
Other dishes showed weaker links. For instance, artichoke fritters, mushrooms, sausage, and toast carried a relative risk of 5.5. Chicken and chorizo meatballs had a relative risk of 3.4, while tomato and prosciutto scored 3.2. The table below highlights the top menu risks:
| Menu Item | Exposed (Cases) | Unexposed (Cases) | Attack Rate Difference (%) | Relative Risk (95% CI) |
|---|---|---|---|---|
| Pâté de canard | 15 (7) | 8 (0) | 46.7 | Undefined |
| Artichoke fritter | 19 (7) | 4 (0) | 36.8 | Undefined |
| Mushrooms/sausage/toast | 11 (5) | 12 (2) | N/A | 5.5 (0.0–38.8) |
| Chicken/chorizo meatballs | 14 (5) | 9 (2) | N/A | 3.4 (0.5–23.6) |
These patterns underscored the pâté’s role, though deep-fried items like fritters were deemed lower risk overall.[1]
Kitchen Inspection Reveals Critical Gaps
Investigators visited the restaurant on August 1, 2025, to observe pâté production. The dish typically used chicken livers but switched to duck that week. For large groups, chefs prepared it in a stainless-steel pan without a protective gelée seal used for smaller portions.
Key issues included no use of calibrated thermometers to verify cooking temperatures. Staff relied on a Magimix appliance display, which read about 6 degrees Celsius higher than actual core temperatures. Raw pâté mixture lingered under the mixer lid, posing a cross-contamination threat to cooked batches. Refrigerators held proper temperatures for high-risk foods, but no leftovers remained for sampling.[1]
Such vulnerabilities echoed past campylobacteriosis incidents involving poultry liver products. Proper cooking and hygiene remain essential for these items.
Quick Interventions Halt Spread
The New South Wales Food Authority responded with a prohibition order. The restaurant stopped serving pâté immediately. No new cases linked to the site appeared afterward.
Health officials emphasized verifying cooking processes for liver-based dishes. The episode highlighted ongoing challenges with campylobacter, a leading bacterial cause of gastroenteritis.
Key Takeaways
- Duck liver pâté showed the highest attack rate at 46.7 percent, with all cases exposed.
- Production flaws involved unverified temperatures and potential raw-to-cooked contamination.
- Prohibition order effectively prevented further illnesses at the venue.
This outbreak serves as a reminder of the hidden dangers in undercooked liver products. Food businesses must prioritize precise temperature controls and hygiene. What steps do you take to ensure food safety at gatherings? Share your thoughts in the comments.
