TAMU ANSC 307 - 1.30 notes (8 pages)

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1.30 notes

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Pages:
8
School:
Texas A&M University
Course:
Ansc 307 - Meats

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1 30 Notes Salmonella Overview Salmonella bacteria are the most commonly reported cause of foodborne illness The bacteria cycle continuously through the environment via the intestinal tract in humans The illness caused by Salmonella is called salmonellosis Sources Salmonella bacteria are most commonly found in raw or undercooked foods such as eggs unpasteurized milk or other dairy products and meats Fruits vegetables yeast and chocolate also have been implicated with salmonella outbreaks Cross contamination causes salmonella to potentially be present in almost any food Symptoms Headache abdominal pain diarrhea and nausea Symptoms generally begin 8 to 48 hours after eating contaminated food and can last anywhere between 1 to 8 days Listeria monocytogenes Overview Listeria monocytogenes are foodborne bacteria that enter the intestines of warm blooded animals including some food animals and human following the ingestion of contaminated food Once inside the body the bacteria multiply and eventually produce numbers sufficient to cause illness The illness caused by Listeria monocytogenes is called listeriosis Sources Commonly found in the intestines of humans and animals in milk soil leafy vegetables and in food processing environments The bacteria also have been isolated in raw and cooked poultry 1553 meat 5 10 seafood salad and sandwiches Unpasteurized dairy products meat pates and processed meats are frequent food carries These bacteria can grow in refrigerated temperatures Symptoms Sudden onset of fever chills headache backache and occasional abdominal pain and diarrhea for adults and respiratory distress refusal to drink and vomiting in newborns Symptoms may begin from one day to several weeks following infections Newborns can contract listeriosis from an infected mother during birth Listeriosis can cause spontaneous abortions and still births Potentially fatal because it is capable of production complications including septicemia meningitis meningo encephalitis



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