Listeria monocytogenes

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    Listeria monocytogenes (L.monocytogenes) is a gram-positive bacterium that is an intracellular human pathogen. L.monocytogenes can persist in vast environmental and animal reservoirs including but not limited: food processing plants, dairy milking equipment, wild birds, and silage (1–3). L.monocytogenes can be seeded into environmental reservoirs through exit of carriers or animal reservoirs by secretion in feces. Handling of equipment used in the production of food for human consumption near or in a L.monocytogenes reservoir can serve as a vehicle of transmission to susceptible hosts. For instance, milking of dairy cows with contaminated equipment can lead to contaminated raw milk products, and secretion of L.monocytogenes from animal reservoirs…

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    Listeria Monocytogenes

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    Listeria monocytogenes is a Gram-positive rod-shaped bacterium. It is the agent of listeriosis, a serious infection caused by eating food contaminated with the bacteria (Todar, 2008). The disease primarily affects older adults, pregnant women, new born, and adults with weakened immune systems. Babies can be born with listeriosis if their mothers eat contaminated food during pregnancy. However, healthy people may consume contaminated foods without becoming ill. Listeria monocytogenes is commonly…

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    Listeria monocytogenes is a gram-positive rod-shaped bacterium and facultative anaerobic that can grow under either anaerobic or aerobic conditions but do not form endospores. Among the six species of Listeria, only Listeria monocytogenes is the major human pathogen that causes disease in humans. It is a causative agent to cause listeriosis, a serious infection caused by ingesting the food contaminated with Listeria. The optimum temperature for growth is 30 to 37 degree Celsius, within this…

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    Listeriaia Infection

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    In the summer of 2008 Canadian healthcare professionals noticed an irregularly high incidence of listeriosis cases (“Listeriosis outbreak timeline”, 2009), the disease associated with infection by Listeria. This concern was disregarded until people in a nursing home fell ill and sandwich meat from the same place tested positive for the presence of Listeria monocytogenes (“Listeriosis outbreak timeline”, 2009). On August 12, 2008, the Canadian Food Inspection Agency launched an investigation of…

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    The Gram positive unknown was identified to be Listeria Monocytogenes. This conclusion was reached with several bits of evidence. Firstly, the Gram positive unknown was rod shape. This narrowed it down to seven different species. However, I felt it was important to perform a series of tests in order to confidently conclude that the Gram positive unknown was indeed Listeria Monocytogenes. So, the pre-constructed sequence of tests was still performed as if all seven of the Gram positive options…

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    Food Poisoning Is Wrong

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    correctly. In September 2006, the United States Food and Drug Administration (FDA) issued a massive warning about bagged raw spinach sold in grocery stores across the U.S. possibly being contaminated. It was later reported by the Center For Disease and control that more than 100 people got sick from eating the infected spinach and one even died. Food cleanliness on a consumer side is only a portion of what contributes to food poisoning. Poor sanitation issues in factories also plays a major…

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    4. Risk Assessment Issues The risk assessment in any industry is very important, can use to direct potential intervention strategies at different food processing steps. in this case, the risk of Listeria monocytogenes can be potential sources of contamination from milk source especially if this cheese made from raw milk and by traditional methods and manufacturing process, and this happened in this case, one of main source of hazards in Lanark Blue cheese by used of Ewes raw milk. According to…

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    Listeriosis is predominantly a food-borne illness caused by the ubiquitous Gram-positive bacterium Listeria monocytogenes, initially recognized as a foodborne pathogen in the early 1980s. People most prone to the disease are pregnant women, newborns, elderly, and those with HIV or other diseases that compromise immunity. Listeria infections are associated with a high mortality rate, thus effective treatment and prevention are essential. Antimicrobial therapy Successful treatment of…

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    Microbiological Control 1. Evaluation of Potentially Hazardous Foods Food is potentially hazardous food if it consists in whole or in part of milk or milk products, eggs, meat, poultry, fish, shellfish, or other ingredients capable of supporting rapid and progressive growth of infectious or toxigenic micro-organisms. Specific recommendations for ensuring the safety of potentially hazardous food are stated along with sanitary practices recommended for the storage, preparation, display, and…

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    immobilized on the electrode surface, the second type is based on the metabolites produced by the bacterial cells. [11]. 2) RECENT DEVELOPMENTS In the recent era, diseases, infections and productivity losses brought by food borne pathogenic bacteria have attracted enormous attention. A great many food borne pathogenic microscopic organisms have been found to influence the wellbeing health and safety of people, animals and plants. [12,13] Among these thousands of food borne pathogenic…

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