The takeaway at the centre of the E. coli outbreak in south-east Wales was given just one out of five in a recent Food Hygiene Rating Scheme (FHRS) survey on July 22nd.
So far three people have been hospitalised with a total of seven people confirmed to have been contaminated thanks to the poor food safety standards of the Adonis Kebab House in Roath, which has been closed as a precautionary measure.
Welsh politicians are not backing the proposed policy of compulsory public food safety notices on all food business shop fronts.
Dr Gwen Jones, consultant in communicable disease control for Public Health Wales who is chairing the multi-agency outbreak control group, said: "Most people recover without complications, but the most severe cases can develop kidney failure.
"Investigations are ongoing and we continue to monitor the situation closely."
First minister Carwyn Jones, outlining his intentions to the assembly at the beginning of July, said he plans to make Wales the first country in the UK to make it mandatory that FHRS findings are publicly displayed on all food business premises.