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Newsletter March 2018

The Largest Listeriosis Outbreak in Recorded History & Now A Product Recall and more - Read Now
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The Science Behind the Listeriosis Outbreak

Quick Facts on Listeriosis

Listeria is the 'family' of bacteria and can be compared to a Continent like Africa
Listeria monocytogenes is a species of Listeria and is like a Country such as South Africa
Listeria monocytogenes ST 6  Is a serotype of Listeria monocytogenes and is like a Person in South Africa
Listeriosis is Disease caused by Listeria monocytogenes. 

All serotypes of Listeria monocytogenes are pathogenic (ST 1 to ST 6) 

When a foodborne disease outbreak is detected, such as the Listeriosis outbreak in South Africa. Health officials and scientists work quickly to collect as much information as possible to find out what is causing it, so they can take action to prevent more people from all ill.

The Listeriosis outbreak in South Africa included scientists from the NICD, Department of Health (DoH) and a few private laboratories.

 

What we know from the epidemiology of the Listeriosis outbreak South Africa:

Of the 967 cases reported, there was a wide distribution throughout the country. This outbreak also affected individuals throughout social classes. This lead investigators to believe that the cause of the outbreak could only have come from a national distribution chain, and that the food item was consumed throughout the class boundaries.

 

 

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what-are-clostridium-bacteria/

What are Clostridium Bacteria?

Clostridium perfringens is a bacterium that produces toxins harmful to humans. It is a spore-forming gram-positive bacteria that can be found in the intestines of mammals and is commonly found in raw meats. This bacterium is also found throughout the environment, and not surprisingly also in sewage.

Food poisoning from C.perfringens Is associated with undercooked meats, often in large quantities of food prepared for a large group of people and left to sit out for long periods of time. Because of this, it is sometimes referred to as the food service bacteria. Meat products such as stews, casseroles, and gravy are the most common sources of illness from C. perfringens. Most outbreaks come from food whose temperature is poorly managed.

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Environmental Listeria species Test

  • Hygiena™ InSite Listeria is an easy-to-use, self-contained, environmental Listeria species test.
  • Each device contains a chromogenic liquid media formulated with antibiotics, growth enhancers, and color-changing compounds specific to Listeria species.
  • Simply swab the test area and wait.
  • A change in color after 24-48 hours of incubation is considered presumptive positive. 
  • No expensive lab equipment is required and no additional sample handling of the sample is necessary.
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