The number of confirmed salmonella cases linked to an outbreak suspected to involve imported eggs has risen to 528, the UK Health Security Agency (UKHSA) said on Thursday, up from 474 reported on August 27.
The latest figures, covering three related Salmonella Enteritidis clusters in England, show that 54 additional cases have been recorded since last week. Two deaths have been associated with the clusters.
UKHSA said the outbreaks remained under investigation, with cases continuing to be linked to eating at a range of food outlets, including small cafés, restaurants and takeaway businesses. Investigators believe imported eggs may be the common source, although the cause has not been confirmed.
The largest cluster accounts for 305 cases and one death. A second has 182 cases, while the third has 41 cases and one death.
The Food Standards Agency said there was no evidence that UK-produced eggs were affected. It advised that eggs which are thoroughly cooked and handled hygienically should not present a food safety risk.
Officials said the overall risk to the public remained low. However, young children, pregnant women, older people and those with weakened immune systems have been advised to avoid raw or lightly cooked egg when eating out unless it is known to carry the British Lion mark or has been produced under the Laid in Britain scheme.
Symptoms of salmonella infection can include diarrhoea, stomach cramps, vomiting and fever. Most people recover without treatment, but the illness can occasionally lead to serious complications, including sepsis and hospital admission.
