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Listeria in the Lab

In this article Lab M’s Lisa Green takes a look at the causative organism for listeriosis and discusses the contribution of more effective microbiological culture media to its isolation and identification.

Twenty years ago, the Public Health Laboratory Service in the UK published a report that outlined a sharp rise, followed by a sharp fall, in reported cases of listeriosis across England and Wales. At the time, the exact reasons behind the outbreak were unclear but the subsequent decrease in cases coincided directly with a public health campaign about foodborne Listeria monocytogenes and the risks to certain sectors of the population. Following the success of the campaign, it was noted within the Communicable Disease Report that: “There is no cause for complacency, however, because the reasons for these changes are poorly understood. A new risk factor may emerge or warnings about high risk foods may be increasingly disregarded as the media publicity wanes; the trends could, therefore, reverse again.”

Today Listeria infection still remains a cause for concern.

To read the full article published in Laboratory News, September 2009, download the pdf below.

Article first published : 23/9/2009