The UK Health Security Agency has documented 474 confirmed salmonella cases associated with imported eggs, representing a significant increase from the 207 cases reported in the previous week. The outbreak encompasses three genetically similar bacterial clusters designated t5.9411, t0.24068, and t5.9765, with 259, 177, and 38 confirmed cases respectively. Two deaths have been attributed to the outbreak, with one fatality linked to cluster t5.9411 and another to t5.9765.
Investigations indicate that cases extend back as far as August 2025, though most instances have occurred in recent weeks. The majority of affected individuals are located in England, particularly in London and Yorkshire and Humber, though smaller numbers have been identified in Scotland, Wales, and Northern Ireland. The patient population spans diverse age groups, ranging from infants to individuals 92 years old. Over one-third of infected persons required hospitalization, though most recover without medical intervention.
Evidence suggests that individuals contracted the illness through consuming food prepared outside the home rather than from cooking eggs domestically. The outbreak is not limited to the United Kingdom, with cases reported across multiple European nations including Austria, Belgium, Denmark, France, Germany, and the Netherlands. In the Netherlands, investigations have indicated a potential connection to chicken meat rather than eggs specifically.
Authorities emphasize that eggs bearing the British Lion mark or produced under the Laid in Britain egg assurance scheme remain safe for consumption, as suppliers must adhere to stringent protocols including hen vaccination and salmonella testing. Officials recommend thorough food preparation and cooking, proper hand hygiene after bathroom use and before food handling. Typical symptoms include stomach cramps, diarrhea, vomiting, and fever, usually appearing 12 to 72 hours after infection. Individuals at elevated risk of severe illness include older adults, infants, and those with compromised immune systems.
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