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UK authorities have linked a Salmonella Enteritidis strain associated with 78 confirmed illnesses in 2025 and 2026 to a batch of eggs from Ukrainian producer Yasensvit. The affected eggs bear code 3UA1012066, and UK food agencies asked businesses to stop using them while Ukrainian authorities planned an inspection and product testing.
UK authorities have linked a Salmonella Enteritidis strain associated with 78 confirmed illnesses in 2025 and 2026 to eggs from Ukrainian producer Yasensvit, prompting food agencies to tell businesses to stop using the identified batch. The cases were reported in England and Wales, and laboratory sequencing found that bacteria detected in sampled eggs matched the strain associated with human infections.
The UK Health Security Agency (UKHSA) identified the strain while investigating a wider Salmonella Enteritidis outbreak involving about 700 patients linked to imported eggs. Testing of nearly 3,000 eggs detected Salmonella in a batch from Ukraine. UKHSA reported that, in October, the bacteria were found in three samples, each made up of six pooled eggs. Nine isolates were sent to a reference laboratory, where whole genome sequencing showed they were the same strain and were associated with human infections.
The affected eggs came from Yasensvit, part of Ukraine’s Ovostar Union Group, and carry the stamp 3UA1012066. The Food Standards Agency and Food Standards Scotland asked food businesses to stop using the eggs. The reported case total is 78, with sample dates running from Dec. 17, 2024, to Sept. 26, 2026: 40 illnesses in England in 2026 and 36 in 2025, plus two cases in Wales across the full period.
Cases ranged in age from under 1 to 99, with a median age of 30; 39 patients were female. The largest reported regional totals were 32 in London and 24 in the East of England. One separately described outbreak, in June 2026, involved six confirmed patients linked to a restaurant in Yorkshire and the Humber that used non-UK eggs in some dishes. The report does not establish that this restaurant outbreak involved the identified Yasensvit batch.
The Identified Batch and Business Advice
The alert gives food businesses a specific producer and egg stamp to check, rather than a broad warning covering all eggs from Ukraine. Stopping use of eggs bearing code 3UA1012066 can limit further exposure if any remain in commercial supply. The reported genetic match also connects food testing with illnesses recorded across two years, giving investigators a basis to examine the supply chain and potential routes of contamination.
The number of cases is a confirmed total reported by the UK investigation, but it does not by itself show how many people were exposed through this batch, how many may have gone unreported, or whether the eggs account for all illnesses associated with the strain. Consumers and businesses should distinguish the identified batch from other products unless authorities issue broader advice.
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How Testing Linked Eggs to Illnesses
The investigation formed part of work on a larger Salmonella Enteritidis outbreak connected to imported eggs. UKHSA tested nearly 3,000 eggs, then followed up on positive samples from the Ukrainian producer. Whole genome sequencing compares the genetic features of bacterial isolates; in this case, the reference laboratory found the nine isolates to be the same strain and associated with human infections.
The sampling date was Sept. 23, 2026. The eggs were reportedly laid and packed on Aug. 23 and had a best-before date of Sept. 19, meaning they were sampled four days after that date. The report identifies the stamped batch but does not give a full account of its distribution or how much had already been sold or used.
Yasensvit had previously urged people to avoid what it called “premature conclusions” until all facts were established. Separately, Ukraine’s State Service of Food Safety and Consumer Protection said it would inspect the company in Kyiv and take product samples for laboratory testing to check information received from UK authorities.
““premature conclusions””
— Yasensvit
Distribution and Investigation Questions
The reported findings identify a specific batch and bacterial strain, but do not explain how the eggs became contaminated or establish the full distribution history. It is not clear how many eggs from the batch entered UK businesses, whether all had been removed from use, or whether any additional cases will be identified. The available report also does not give a confirmed date or results for the Ukrainian inspection and product tests.
The reported 78 cases span sample dates from December 2024 to September 2026, while positive egg sampling took place in September 2026. The source does not detail the evidence used to connect each illness to the product or specify how many patients had direct exposure to the identified batch. The larger outbreak figure of about 700 patients refers to an investigation involving imported eggs; it should not be read as the number of people sickened by this Ukrainian batch.
Inspection, Testing and Batch Checks
Ukraine’s food safety service said it would inspect Yasensvit and collect samples for laboratory analysis. Results could help verify the information shared by UK authorities and clarify whether contamination was present in additional products. UK agencies may also continue reviewing case data and the egg supply chain; the source material does not state a timetable for further findings.
For now, the stated business action is to stop using eggs stamped 3UA1012066. Any further change to the scope of the warning, or new advice for consumers, would depend on updates from the relevant food safety authorities.
Key Questions
How many illnesses have been linked to the Salmonella strain?
The report gives 78 confirmed cases with sample dates from Dec. 17, 2024, to Sept. 26, 2026. It lists 40 cases in England in 2026 and 36 in 2025, with two cases in Wales across the reported period.
Which eggs were identified?
The eggs were produced by Yasensvit in Ukraine and carry the stamp 3UA1012066. UK food agencies asked businesses to stop using eggs with that code.
How did investigators connect the eggs to human infections?
UKHSA found Salmonella Enteritidis in three pooled egg samples. A reference laboratory used whole genome sequencing on nine isolates and reported that they were the same strain associated with human infections.
Does the report say that all 700 patients were sickened by these Ukrainian eggs?
No. The approximately 700 patients were part of a larger investigation involving imported eggs. The report separately identifies 78 cases associated with the strain linked to the Ukrainian batch; it does not say all 700 were caused by those eggs.
What happens next in Ukraine?
Ukraine’s State Service of Food Safety and Consumer Protection said it planned to inspect the company in Kyiv and collect product samples for laboratory testing. The report does not provide a date for the inspection or its results.
Source: foodsafetynews.com
