A study conducted on behalf of the Food Standards Agency found that 76 per cent of oysters tested from UK oyster growing beds had traces of the infectious bug.
Low levels of the virus, which causes symptoms such as vomiting and diarrhoea, were found in 52 per cent of the positive samples, according to the data.
The FSA said it was ‘difficult’ to assess the potential health impact of the findings, as researchers were unable to differentiate between infectious and non-infectious norovirus material in the shellfish.
However, it said the results of the study would be used as part of a review by the European Food Safety Authority, which is to advise the European Commission on what a legal safe level for norovirus in oysters should be. Read More