KEY WEST, FL. An employee at Duval House on Duval Street was found not reporting symptoms of illness to management, a violation that state inspectors flagged as high-severity during a May 26, 2026 inspection that turned up six high-priority citations in total. The restaurant was not closed.
That single violation, unreported worker illness, is the condition most directly linked to multi-victim outbreaks. Food prepared or handled by a symptomatic employee can spread norovirus or other pathogens to dozens of customers before anyone connects the cases to a single source.
It was not the only serious problem inspectors documented that day.
What Inspectors Found
Inspectors also cited the restaurant for food not cooked to the required minimum temperature. Undercooking is among the most direct routes to foodborne illness, particularly for poultry, where salmonella survives below 165 degrees Fahrenheit.
Food contact surfaces were not properly cleaned or sanitized, a separate high-severity citation. Cutting boards, prep counters, and similar surfaces that touch food directly are among the most efficient transfer points for bacterial contamination between items.
The shellfish citation adds a different dimension of risk. Inspectors found inadequate shell stock identification and records, meaning oysters, clams, or mussels on the menu could not be traced to a certified source if a customer became ill after eating them.
Toxic chemicals were found improperly stored or labeled, a high-severity citation that carries the risk of acute poisoning if a chemical contaminates food through mislabeling or proximity to prep areas. Three intermediate violations rounded out the inspection: multi-use utensils not properly cleaned, wiping cloths used improperly, and inadequate or improperly maintained toilet facilities.
Nine violations in a single visit. The restaurant stayed open.
What These Violations Mean
The unreported illness violation is the one that most directly endangered anyone who ate at Duval House around the time of the inspection. When a food worker with norovirus, hepatitis A, or a similar illness continues to handle food without reporting symptoms, the pathogen moves directly from the worker's hands to the food to the customer. There is no step in that chain where a kitchen procedure stops it. Inspectors flagged this at Duval House as a high-priority violation on May 26.
The undercooked food citation compounds the risk. When proteins are not brought to their required internal temperatures, bacteria that should be killed in the cooking process survive and remain on the plate. Paired with improperly cleaned food contact surfaces, that creates a second pathway: bacteria from one food item transfers to another through a shared cutting board or prep surface that was never adequately sanitized between uses.
The shellfish traceability violation matters most when something goes wrong. Shellfish consumed raw or lightly cooked, including oysters, carry a higher baseline risk than most foods. The required tagging and record system exists so that if customers report illness, health officials can identify the harvest location and pull product. Without those records at Duval House, that chain of accountability was broken.
Chemical storage violations are sometimes treated as paperwork problems. They are not. An unlabeled chemical stored near food prep areas, or a mislabeled container, can result in a customer ingesting a toxic substance with no immediate way for medical responders to identify what was consumed.
The Longer Record
The May 2026 inspection is the worst on record for this facility by high-severity violation count. Inspectors have visited Duval House 13 times in total, and the cumulative record shows 52 violations across those inspections. The facility has never been emergency-closed.
The pattern going back to 2019 is not one of isolated bad days. Inspectors found two high-severity violations in August 2019, three in February 2021, two in June 2023, three in January 2023, and five in December 2023. The December 2023 inspection, with five high-severity citations, was the previous high-water mark before this month's six.
A July 2025 inspection found zero high-severity and zero intermediate violations, a clean result that makes the May 2026 findings harder to explain as simple drift. The facility went from a clean bill of health ten months ago to its worst inspection on record.
The 2023 calendar year alone produced three separate inspections with high-severity violations. That is three visits in twelve months, each one turning up serious citations in a facility that has never faced an emergency closure order.
Still Open
State inspectors documented six high-severity violations at Duval House on May 26, 2026, including an employee not reporting illness symptoms, food not cooked to required temperatures, unsanitized food contact surfaces, untraceable shellfish, improperly used time as a public health control, and toxic chemicals stored or labeled incorrectly.
The facility was not closed.
