Public health officer: listeria infection came from one source

The recent outbreak of illnesses caused by the listeria bacteria can be traced to a single source, the country's chief public health officer Michael Vit said on Thursday. He did not disclose the name of the company but said it was a dairy factory and production has been halted there. Last year, 80 people were diagnosed with illnesses caused by the bacteria, five times more than in the previous year; thirteen of them died.