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Listeria

Listeria. Listeria Monocytogenes. Rod shaped Gram Positive bacteria (bacilli) 7 species of Listeria First documented in 1924. Incidence - Prevalence. On the rise! 1 in 108,000 1,800-2500 diagnosed yearly Of that approximately 425 deaths. Who should Worry?. Adults over the age of 50

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Listeria

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  1. Listeria

  2. ListeriaMonocytogenes • Rod shaped Gram Positive bacteria (bacilli) • 7 species of Listeria • First documented in 1924

  3. Incidence - Prevalence • On the rise! • 1 in 108,000 • 1,800-2500 diagnosed yearly • Of that approximately 425 deaths

  4. Who should Worry? • Adults over the age of 50 • Those with weakened immune systems • Developing fetuses • Newborns • Pregnant Women

  5. Reservoir - Where is it from? • Soil, forage, mud, silage, wild animals, fowl, soft cheeses. • Food! When improperly cooked or cleaned. • Can still grow in refrigerated foods!

  6. Signs and Symptoms • Fever • Muscle aches • Diarrhea • Stiff neck • Headache • Confusion • Loss of balance • Convulsions

  7. Development • Ranges from one day to more than three weeks to develop symptoms • May last days or weeks dependent on severity.

  8. Where it can travel • Endocarditis - Heart • Meningitis - Brain • Pneumonia - Lungs

  9. Treatment • Most mild cases do not require treatment. • More severe use antibiotics such as: • ampicillin • penicillin • gentamicin

  10. Communicable? • Not contagious under normal circumstances. • Mother can transmit it to her unborn fetus. • Can remains in stool for several months.

  11. Prevention • Stay healthy! • Properly cook and clean your food.

  12. Questions?

  13. Bibliography • http://nmhealth.org/ERD/HealthData/Foodborne/Listeriosis.pdf • http://www.nlm.nih.gov/medlineplus/ency/article/001380.htm • http://www.nlm.nih.gov/medlineplus/ency/article/001380.htm

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