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4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
4 h bacterial diseases
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4 h bacterial diseases

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  • 1. Bacterial Diseases 4-H Veterinary Science Extension Veterinary Medicine Texas AgriLife Extension Service College of Veterinary Medicine and Biomedical Sciences Texas A&M System http://aevm.tamu.edu
  • 2. Objectives <ul><li>Describe bacterial diseases that affect the skin </li></ul><ul><li>Describe bacterial diseases that affect the eye </li></ul><ul><li>Describe bacterial diseases that affect the ear </li></ul><ul><li>Describe bacterial diseases that affect the reproductive system </li></ul><ul><li>Describe clostridial diseases </li></ul>
  • 3. Bacteria <ul><li>Definition </li></ul><ul><ul><li>Single-celled microorganisms which can exist either as independent (free-living) organisms or as parasites (dependent upon another organism for life) </li></ul></ul><ul><li>Invade tissues </li></ul><ul><li>May produce </li></ul><ul><ul><li>Pus </li></ul></ul><ul><ul><li>Harmful or poisonous waste </li></ul></ul>
  • 4. <ul><li>Bacteremia </li></ul><ul><ul><li>Blood </li></ul></ul><ul><li>Septicemia </li></ul><ul><ul><li>Harmful waste products in blood </li></ul></ul><ul><li>Toxemia </li></ul><ul><ul><li>Toxins in blood </li></ul></ul>
  • 5. <ul><li>Occurs </li></ul><ul><ul><li>Normal incubation period </li></ul></ul><ul><ul><li>Development of dormant infection </li></ul></ul><ul><li>Pathogens </li></ul><ul><ul><li>Primary bacterial disease </li></ul></ul><ul><ul><li>Secondary bacterial disease </li></ul></ul><ul><ul><ul><li>Predispositions </li></ul></ul></ul><ul><ul><ul><ul><li>Primary infection </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Stress </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Tissue injuries </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Dietary changes </li></ul></ul></ul></ul>
  • 6. Generalized Conditions <ul><li>Caused by various abnormalities </li></ul><ul><ul><li>Anemia </li></ul></ul><ul><ul><li>Encephalitis </li></ul></ul><ul><ul><li>Hepatitis </li></ul></ul><ul><ul><li>Pneumonia </li></ul></ul><ul><ul><li>Nephritis </li></ul></ul><ul><ul><li>Gastroenteritis </li></ul></ul>
  • 7. <ul><li>Clostridial diseases </li></ul><ul><ul><li>Systems affected </li></ul></ul><ul><ul><ul><li>GI </li></ul></ul></ul><ul><ul><ul><li>Musculo-skeletal </li></ul></ul></ul><ul><ul><ul><li>Nervous </li></ul></ul></ul><ul><ul><li>Spore forming </li></ul></ul><ul><ul><li>Natural inhabitants </li></ul></ul><ul><ul><ul><li>Soil </li></ul></ul></ul><ul><ul><ul><li>Intestinal tracts </li></ul></ul></ul><ul><ul><li>Affects numerous species </li></ul></ul>
  • 8. <ul><ul><li>Two Categories </li></ul></ul><ul><ul><ul><li>Active invasion of tissue with production of toxins </li></ul></ul></ul><ul><ul><ul><li>Toxemia resulting from absorption of toxins by digestion (enterotoxemias) or ingestion (botulism) </li></ul></ul></ul>
  • 9. <ul><li>Types </li></ul>Enterotoxemia Sheep Clostridium perfringens Gas Gangrene Man Clostridium perfringens Tetanus Animals, Man Clostridium tetani Blackleg Cattle Clostridium chauvoei Botulism Animals, Man Clostridium botulimun Diseases Hosts Species
  • 10. <ul><ul><li>In cattle </li></ul></ul><ul><ul><ul><li>7-way Clostridial vaccine </li></ul></ul></ul><ul><ul><ul><ul><li>C. chauvoei – blackleg </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C. septicum – malignant edema </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C. novyi – black disease (neck, liver, gut) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C. sordellii – gas gangrene </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C. perfringens Types B, C and D – enterotoxemia </li></ul></ul></ul></ul>
  • 11. Skin <ul><li>Dermatitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the skin </li></ul></ul></ul><ul><ul><li>Causes </li></ul></ul><ul><ul><ul><li>Bacteria </li></ul></ul></ul><ul><ul><ul><li>Arthropods </li></ul></ul></ul><ul><ul><ul><li>Fungi </li></ul></ul></ul><ul><ul><ul><li>Allergens </li></ul></ul></ul><ul><ul><li>Common sign </li></ul></ul><ul><ul><ul><li>Pruritus (itching) </li></ul></ul></ul><ul><ul><ul><li>Skin lesions </li></ul></ul></ul><ul><ul><ul><ul><li>Reddening/thickening of skin </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Bumps </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Blisters </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Crusts or scales </li></ul></ul></ul></ul>
  • 12. <ul><li>Pyoderma </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Skin condition with the presence of purulent exudate (pus) </li></ul></ul></ul><ul><ul><li>Superficial or deep pustules </li></ul></ul><ul><ul><li>Associated with </li></ul></ul><ul><ul><ul><li>Skin allergies </li></ul></ul></ul><ul><ul><ul><ul><li>“ Hot spots” </li></ul></ul></ul></ul><ul><ul><ul><li>Mange conditions </li></ul></ul></ul><ul><ul><li>Observe </li></ul></ul><ul><ul><ul><li>Warm, humid weather </li></ul></ul></ul>
  • 13. Eye <ul><li>Keratoconjunctivitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the eyeball’s surface (cornea) and the eyelid’s lining (conjunctiva) </li></ul></ul></ul><ul><ul><li>Conjunctivitis </li></ul></ul><ul><ul><ul><li>Inflammation of the conjunctiva </li></ul></ul></ul><ul><ul><ul><li>With/without keratitis </li></ul></ul></ul><ul><ul><ul><li>Symptoms </li></ul></ul></ul><ul><ul><ul><ul><li>Reddening of eyelids </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Rubbing </li></ul></ul></ul></ul>
  • 14.  
  • 15. <ul><li>Keratitis </li></ul><ul><ul><li>Inflammation of the cornea </li></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Opaque or cloudy cornea </li></ul></ul></ul><ul><ul><ul><li>Possibly ulcers </li></ul></ul></ul><ul><ul><ul><li>Sensitive to sunlight </li></ul></ul></ul><ul><ul><ul><li>Mucopurulent (mucus with pus) tears </li></ul></ul></ul><ul><ul><ul><li>Crusty matter around eyes </li></ul></ul></ul><ul><ul><li>Ulcers diagnosed with flourescent dye </li></ul></ul><ul><ul><li>Common name </li></ul></ul><ul><ul><ul><li>Pink eye </li></ul></ul></ul>
  • 16. Ear <ul><li>Otitis externa </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Infection of the external ear canal </li></ul></ul></ul><ul><ul><li>Characterization </li></ul></ul><ul><ul><ul><li>Inflammation of epithelium </li></ul></ul></ul><ul><ul><ul><li>Reddening </li></ul></ul></ul><ul><ul><ul><li>Itching </li></ul></ul></ul><ul><ul><ul><li>Drainage </li></ul></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Scratching or rubbing </li></ul></ul></ul>
  • 17. <ul><li>Affects primarily dogs and cats </li></ul><ul><li>Predispositions </li></ul><ul><ul><li>Small external ear canal opening </li></ul></ul><ul><ul><li>Excessive hair </li></ul></ul><ul><ul><li>Flopped ears </li></ul></ul><ul><ul><li>Warm, humid weather </li></ul></ul>
  • 18. Respiratory System <ul><li>Rhinitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the mucous membranes of the nasal passages </li></ul></ul></ul><ul><ul><li>Acute or chronic </li></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Nasal discharge </li></ul></ul></ul><ul><ul><ul><li>Open-mouth breathing </li></ul></ul></ul><ul><ul><ul><li>Sneezing </li></ul></ul></ul>
  • 19. <ul><li>Sinusitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the sinuses </li></ul></ul></ul><ul><ul><li>Acute or chronic </li></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Nasal discharge </li></ul></ul></ul><ul><ul><ul><li>Open-mouth breathing </li></ul></ul></ul><ul><ul><ul><li>Sneezing </li></ul></ul></ul>
  • 20. <ul><li>Pneumonia </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Bacterial infection in the lung tissue and air passages causing acute or chronic inflammation </li></ul></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Deep cough </li></ul></ul></ul><ul><ul><ul><li>Difficulty breathing </li></ul></ul></ul><ul><ul><li>Bacteria complicate viral pneumonia </li></ul></ul>
  • 21. <ul><ul><li>Diseases </li></ul></ul><ul><ul><ul><li>Cattle and swine </li></ul></ul></ul><ul><ul><ul><ul><li>Pasteurellosis </li></ul></ul></ul></ul><ul><ul><ul><li>Cats </li></ul></ul></ul><ul><ul><ul><ul><li>Pneumonitis </li></ul></ul></ul></ul>
  • 22. <ul><li>Tonsillitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the tonsils </li></ul></ul></ul><ul><ul><li>Common in dogs </li></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Gagging </li></ul></ul></ul><ul><ul><ul><li>Retching </li></ul></ul></ul><ul><ul><ul><li>Soft coughing </li></ul></ul></ul><ul><ul><ul><li>Expulsion of mucus </li></ul></ul></ul>
  • 23. Digestive System <ul><li>Gastroenteritis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the stomach and intestines </li></ul></ul></ul><ul><ul><li>Many types of bacteria </li></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Excessive salivation </li></ul></ul></ul><ul><ul><ul><li>Vomiting </li></ul></ul></ul><ul><ul><ul><li>Diarrhea </li></ul></ul></ul><ul><ul><ul><li>Straining </li></ul></ul></ul><ul><ul><ul><li>Abdominal pain </li></ul></ul></ul><ul><ul><ul><li>Hemorrhages </li></ul></ul></ul><ul><ul><ul><ul><li>Blood in diarrhea </li></ul></ul></ul></ul>
  • 24. <ul><ul><li>Diseases </li></ul></ul><ul><ul><ul><li>Salmonellosis </li></ul></ul></ul><ul><ul><ul><li>Enterotoxemia </li></ul></ul></ul><ul><ul><ul><li>Colibacillosis </li></ul></ul></ul>
  • 25. Reproductive System <ul><li>Metritis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammation of the uterus </li></ul></ul></ul><ul><ul><li>Postpartum disorder </li></ul></ul><ul><ul><li>May cause </li></ul></ul><ul><ul><ul><li>Abortions </li></ul></ul></ul><ul><ul><ul><li>Retained placentas </li></ul></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Purulent, foul-smelling vaginal discharge </li></ul></ul></ul><ul><ul><li>Persistent metritis </li></ul></ul><ul><ul><ul><li>Infertility </li></ul></ul></ul><ul><ul><li>Diseases </li></ul></ul><ul><ul><ul><li>Contagious equine metritis </li></ul></ul></ul>
  • 26.  
  • 27. <ul><li>Abortion </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Premature birth of a fetus by pregnant females </li></ul></ul></ul><ul><ul><li>Early termination of pregnancy due to bacterial infection </li></ul></ul><ul><ul><li>Diseases </li></ul></ul><ul><ul><ul><li>Brucellosis </li></ul></ul></ul><ul><ul><ul><li>Leptospirosis </li></ul></ul></ul><ul><ul><ul><li>Campylobacteriosis </li></ul></ul></ul><ul><ul><ul><li>Trich </li></ul></ul></ul><ul><ul><ul><li>Neospora </li></ul></ul></ul>Aborted Fetus
  • 28. <ul><ul><li>Termination </li></ul></ul><ul><ul><ul><li>Bacteria attack </li></ul></ul></ul><ul><ul><ul><ul><li>Embryo/fetus </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Placenta </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Uterus </li></ul></ul></ul></ul><ul><ul><li>Transmission </li></ul></ul><ul><ul><ul><li>Ingestion </li></ul></ul></ul><ul><ul><ul><li>Inhalation </li></ul></ul></ul><ul><ul><ul><li>Venereal </li></ul></ul></ul>
  • 29. <ul><li>Mastitis </li></ul><ul><ul><li>Description </li></ul></ul><ul><ul><ul><li>Inflammatory process involving the mammary glands or udder tissue during lactation </li></ul></ul></ul><ul><ul><li>Occurrences </li></ul></ul><ul><ul><ul><li>Infected nipple </li></ul></ul></ul><ul><ul><ul><li>Blood </li></ul></ul></ul><ul><ul><ul><li>Penetrating wounds </li></ul></ul></ul><ul><ul><li>Symptoms </li></ul></ul><ul><ul><ul><li>Udder </li></ul></ul></ul><ul><ul><ul><ul><li>Swollen </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Warm </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Painful </li></ul></ul></ul></ul><ul><ul><ul><li>Milk </li></ul></ul></ul><ul><ul><ul><ul><li>Hemorrhagic </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Purulent </li></ul></ul></ul></ul>
  • 30.  

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