
So, While rummaging through the world wide junk on google news, I came across several news feeds on Listeriosis and I was surprised to see that Listeriosis actually affected anyone in the general public. I wasnt expecting to see someone go down with it. I learnt about L. Monocytogenes in class but who knew that it would actually find its place in public.

Anyways, surprised with this incident of listeria poisoning and associated death, I continued perusing through more of the world-wide junk and came across some more interesting news from the other side of the world – India. The news page read that two individuals had died from taking drugs that were used to treat listeriosis. What are the odds of that? Here we have individuals dying of listeriosis poisoning in Canada and at the other end of the world, we have people dying because of taking drugs meant to treat Listeriosis. I thought that is something worth while noting. Anyways, here’s my blurb on Listeriosis.
Listeria Monocytogenes
Type: Gram-Positive, non-spore forming rod. It is a facultative intracellular organism
Catch Phrase: Appears to have tumbling motility when observed under a microscope and prefers to grow in cold environments (hence, refridgeration may not retard their growth). They also have actin jet motility in cells.
Other characteristics: Beta Hemolysis on Blood agar.
Common Sources: Milk products, Deli meats, Maple Leaf Food products
High Risk individuals: Pregnant women, Immunocompromised patients (AIDS pts), Renal Transplant patients, Cancer patients and Neonates.
Diseases:
- Listeriosis: Flu like symptoms that, if untreated, can progress to cause Meningitis (*3rd leading cause of meningitis in neonates), Encephalitis, Septicemia.
- Neonatal Listeria Infection can be of two types: 1) Early onset disease that can produce formation of granulomas and central necrosis in neonates. This condition is refereed to as Granulomatous Infantseptica. 2) The other form of exposure that can occur 2-3 weeks after birth, can cause meningitis and septicemia.
Treatment: Ampicillin.
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Sources:
http://afp.google.com/article/ALeqM5jFh1ZPafbsYsSCSlq5v5-chCcDcw