More than 200 people across England have fallen ill in a salmonella outbreak linked to imported eggs served in cafes and restaurants, with one person dead and 34 hospitalised. The UK Health Security Agency confirmed the source of the outbreak and has raised fresh questions about food safety standards for imported produce.
So what exactly is salmonella, and should people be worried about eating eggs right now?
Salmonella is a type of bacteria that lives in the intestines of animals and humans. When it gets into food and someone eats it, it can cause serious illness. Symptoms usually kick in between six hours and six days after eating contaminated food and include stomach cramps, diarrhoea, vomiting, and fever. Most healthy adults recover within a week without needing treatment, but for older people, young children, and anyone with a weakened immune system, it can turn dangerous fast.
The bacteria spreads through raw or undercooked meat, poultry, and eggs, but also through unpasteurised dairy products and even some fresh fruit and vegetables. Cross-contamination in kitchens is another common route, where raw eggs or meat come into contact with surfaces, utensils, or other foods that are then eaten without being cooked.
In this latest outbreak, the UKHSA pointed to eggs imported into Britain that were then used in food prepared and served in hospitality settings. That detail matters because eggs sold in UK supermarkets from British hens are generally considered safe, largely thanks to the British Lion scheme. Eggs carrying the Lion mark come from hens vaccinated against salmonella, and the scheme has strict hygiene and traceability standards attached to it. The Food Standards Agency has consistently said Lion-marked eggs can be eaten runny or even raw by most people, including pregnant women.
Imported eggs are a different story. They do not automatically meet the same standards, and restaurants or cafes buying in bulk from overseas suppliers may be using eggs that have not gone through equivalent safety checks. That is where the risk in this outbreak appears to have come from.
For people eating out, the advice is straightforward. If you are ordering something with eggs in it at a cafe or restaurant, it is worth asking whether the eggs are fully cooked. Dishes like hollandaise sauce, certain mayonnaises, and lightly fried or poached eggs carry more risk if the eggs used are not from a vaccinated flock. Scrambled eggs cooked until firm, hard-boiled eggs, and baked goods where eggs are cooked through are generally much safer options.
At home, the basics of food hygiene go a long way. Wash your hands after handling raw eggs, keep them stored in the fridge, and avoid using cracked or dirty eggs. Clean any surfaces or equipment that raw eggs have touched before using them for anything else.
The 207 cases confirmed so far are spread across the UK, though England accounts for the bulk of them given its population size. Health officials are continuing to investigate the supply chain to trace exactly which imported eggs were involved and which businesses received them.
The UKHSA has stopped short of telling people to avoid eggs altogether, and food safety experts have echoed that message. British eggs from Lion-marked boxes remain safe to eat. The concern is specifically around imported eggs in catering environments where the supply chain is less tightly controlled.
For anyone who thinks they may have eaten contaminated food and is experiencing symptoms, the NHS advises drinking plenty of fluids to stay hydrated. Most people will not need antibiotics. However, if symptoms are severe, if there is blood in the stool, or if someone is in a high-risk group and getting worse rather than better, they should contact their GP or call 111.
The outbreak has put a spotlight on food import standards at a time when trade policy and supply chains are already under scrutiny. Campaigners and food safety advocates have been quick to point out that the UK’s departure from EU regulatory frameworks has raised questions about whether imported food products are being checked as rigorously as they should be.
For now, the message from health officials is clear. Be cautious when eating out, ask questions about where eggs come from, and at home, stick to British Lion eggs and basic kitchen hygiene. The risk to the general public remains relatively low, but with one person already dead and dozens hospitalised, this is not an outbreak to take lightly.