A salmonella outbreak in the United Kingdom has resulted in one death and more than 200 confirmed illnesses, prompting health authorities to investigate what they believe may be a foodborne outbreak linked to products made with imported eggs.

According to the UK Health Security Agency (UKHSA), 207 confirmed cases have been identified over the past year, with the majority reported in recent weeks. Officials say the outbreak involves a single strain of salmonella, suggesting that many of the infections may be connected to the same source.

More than one-third of those infected have required hospital treatment. Patients range in age from infants to people in their 90s, and two individuals developed severe bloodstream infections. Although salmonella infections usually resolve without medical intervention, serious complications can occur, particularly among vulnerable groups.

Symptoms and Health Advice

Salmonella commonly causes diarrhea, stomach cramps, vomiting, and fever, with symptoms typically appearing between 12 and 72 hours after exposure. Health officials advise anyone experiencing severe or persistent symptoms to seek medical advice promptly.

Most Cases Reported in England

Of the 207 confirmed infections, 199 occurred in England, including 47 cases in London and 38 in Yorkshire and the Humber. Authorities have also confirmed six cases in Scotland, one in Wales, and one in Northern Ireland.

Hannah Charles, lead epidemiologist for gastrointestinal infections at the UKHSA, said investigators are working closely with the Food Standards Agency (FSA) and other public health organizations to determine the source of the outbreak.

Imported Eggs Under Investigation

While salmonella can be transmitted through several foods—including undercooked poultry, meat, and eggs—investigators say the strongest evidence currently points to foods prepared with imported eggs.

The UKHSA noted that many affected individuals became ill after eating at restaurants or catering establishments rather than from meals prepared at home. Some of the businesses linked to confirmed cases are known to use imported eggs.

Officials emphasized that no evidence has linked the outbreak to eggs or poultry produced in the United Kingdom, where laying hens are required to follow strict salmonella vaccination programs.

Investigation Continues

Health authorities are conducting extensive epidemiological and food-chain investigations to identify the precise source of contamination. Experts believe additional cases may emerge, as some infected individuals may have experienced only mild symptoms and never sought medical care.

Despite the ongoing investigation, officials say the overall risk to the general public remains low.

Food Safety Recommendations

The Food Standards Agency advises consumers to reduce their risk by thoroughly cooking eggs and practicing good kitchen hygiene, including washing hands after handling eggs, eggshells, or packaging.

For vulnerable groups—including young children, pregnant women, older adults, and people with weakened immune systems—the agency recommends eating only raw or lightly cooked eggs that carry the British Lion quality mark or are produced under the Laid in Britain assurance scheme.

Food safety experts also encourage consumers to check hygiene ratings before dining at restaurants or catering establishments, as proper food handling remains one of the most effective ways to prevent foodborne illness.

Meanwhile, the British Egg Industry Council emphasized that UK egg producers follow mandatory salmonella vaccination requirements and suggested that increasing imports from countries with less stringent production standards may contribute to elevated food safety risks.