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| ===Clostridium sordelli=== | | ===Clostridium sordelli=== |
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− | *Causes [[General Pathology - Necrosis#Gas Gangrene|gas gangrene]] and [[Muscles - inflammatory#Gas gangrene|myositis]] | + | *Causes [[General Pathology - Necrosis#Gas Gangrene|gas gangrene]], [[Muscles - inflammatory#Gas gangrene|myositis]] and abomasitis (lambs) |
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| + | ===Treatment of histotoxic infections=== |
| + | |
| + | *Early penicillin |
| + | *Vaccination with bacterin or toxoid at 3 months and booster after 3 weeks, then annually |
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| *Anaerobic transport medium | | *Anaerobic transport medium |
| *Culture on blood agar enriched with yeast extract, vitamin K and haemin | | *Culture on blood agar enriched with yeast extract, vitamin K and haemin |
− | *Anaerobic culture with hydrogen supplement and 5-10% carbon dioxide | + | *Anaerobic culture with hydrogen supplement and 5-10% carbon dioxide for 48 hours |
| + | *Colonies of ''C. perfringens'' are 5mm diameter, circular, flat and grey |
| *''C. perfringens'' colonies are surrounded by a zone of double haemolysis | | *''C. perfringens'' colonies are surrounded by a zone of double haemolysis |
| + | *Positive cAMP test with ''Sreptococci agalactiae'' |
| *Biochemical tests | | *Biochemical tests |
| *Toxins identified in body fluids by toxin neutralisation or protection tests in lab animals | | *Toxins identified in body fluids by toxin neutralisation or protection tests in lab animals |
| + | *Nagler reaction to detect alpha toxin - plate neutralisation test |
| *Fluorescent antibody tests for histotoxic clostridia | | *Fluorescent antibody tests for histotoxic clostridia |
| *ELISA, PCR for toxin detection | | *ELISA, PCR for toxin detection |
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| **Gas production causing subcutaneous crepitus | | **Gas production causing subcutaneous crepitus |
| **Similar manifestations as malignant oedema | | **Similar manifestations as malignant oedema |
− | *Necrotising enterocolitis in chickens and pigs | + | *''C perfringens'' type A causes necrotising enterocolitis in pigs and necrotic enteritis in chickens |
| * Causes: | | * Causes: |
| ** [[Intestines - Fibrinous/ Haemorrhagic Enteritis#Lamb Dysentery (Enterotoxaemia with Blood)|Lamb dysentery]] | | ** [[Intestines - Fibrinous/ Haemorrhagic Enteritis#Lamb Dysentery (Enterotoxaemia with Blood)|Lamb dysentery]] |