One person has died and 207 others have been infected in a salmonella outbreak across the UK, with health authorities investigating a possible connection to food prepared using imported eggs.
The UK Health Security Agency (UKHSA) said on Tuesday that an investigation was launched after officials detected an increase in cases in May involving a single strain of salmonella.
A total of 207 confirmed infections were recorded between August 11, 2025 and August 1, 2026, with all but one of the cases occurring this year.
Genetic sequencing of the samples indicated that the infections were closely related, suggesting they were likely connected to a common source of contamination.
England accounted for 199 of the 207 cases, including 47 in London and 38 in Yorkshire and the Humber.
Those infected ranged in age from infants to 90-year-olds, while more than a third required hospital treatment. Two patients developed serious bloodstream infections, although the UKHSA said most people affected by salmonella recover without medical treatment.
Authorities are examining whether the outbreak is associated with eggs imported from outside the UK or foods produced using them.
“We’re working with Food Standards Agency and other public health agencies to investigate a salmonella outbreak that may be linked to eggs imported from outside of the UK,” UKHSA lead epidemiologist Hannah Charles said.
Salmonella infections can result from several contaminated foods, particularly raw or inadequately cooked eggs, poultry and meat.