A major Salmonella outbreak spanning across Europe has raised alarm among health authorities, with 29 cases confirmed in the UK alone. The source of the contamination has been traced back to cherry tomatoes from Sicily, prompting urgent warnings for consumers. This ongoing health threat has already impacted 289 individuals in 16 European countries since 2023.
The outbreak is linked to a rare strain of Salmonella enterica, identified as serovar Strathcona ST2559, which has been causing infections across multiple nations. Health experts are concerned that the risk of further cases remains high, particularly as seasonal produce continues to circulate.
The Spread Across Europe and Its Impact
The contamination, which has already affected 289 individuals in total, has spread beyond Italy, where the outbreak originated. According to the European Centre for Disease Prevention and Control (ECDC), Italy has reported the highest number of cases, with 78 people falling ill. However, the infection has also spread to Germany, Austria, France, and beyond, with countries like Ireland and Norway registering new infections in 2025.
Notably, health authorities have warned that this ongoing spread may not be over. Additional cases have been reported in countries such as the Netherlands, Czechia, and Denmark, with several individuals having visited Italy before falling ill.
The true scope of the outbreak may be even larger than officially reported due to difficulties in detecting the unusual lactose-fermenting strain of Salmonella found in some samples, making it harder to diagnose the infection. The ECDC has urged continued vigilance, as they expect further outbreaks to occur in future seasons until effective control measures are in place.
The Risks and Symptoms of Salmonella Infections
Salmonella infections are commonly associated with foodborne illnesses and can cause a range of symptoms, including loose stools, abdominal pain, fever, nausea, and vomiting. Most individuals recover within three to seven days, but in some cases, symptoms can last longer and complications, such as blood poisoning or joint pain, may arise.
The NHS has stated that while the majority of cases resolve on their own, some people may experience prolonged symptoms that could require medical attention. The public is advised to be cautious about the food they consume, particularly fresh produce, which remains a common source of Salmonella contamination.
This raises concerns that the true number of cases may be “underestimated,” as the rare lactose-fermenting strain of Salmonella complicates detection, according to the European Centre for Disease Prevention and Control (ECDC).
The NHS has also highlighted that while the majority of symptoms clear up within three to seven days, some individuals may experience prolonged recovery, with rarer complications such as blood poisoning, abscesses, and joint pain. These warnings emphasise the need for heightened vigilance as the outbreak continues to spread across Europe.
