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− | ===Clinical infections=== | + | ===[[Respiratory Bacterial Infections - Pathology#Contagious bovine pleuropneumonia (CBPP)|Contagious bovine pleuropneumonia]]=== |
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| + | *[[Respiratory Bacterial Infections - Pathology#Contagious bovine pleuropneumonia (CBPP)|Contagious bovine pleuropneumonia]] is caused by ''M. mycoides'' subsp. ''mycoides'' |
| + | *A severe contagious disease of cattle |
| + | *Endemic in Africa, the Middle East and Asia |
| + | *Aerosol transmission by close contact with clinically or subclinically affected animals |
| + | *Severity depends on strain and host susceptibility |
| + | *Slow spread of infection |
| + | *50% morbidity; mortality rate high in severe outbreaks |
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| + | *Clinical signs |
| + | **Acute onset fever, anorexia, depression, lowered milk yield, hyperpnoea, coughing and a mucopurulent nasal discharge |
| + | **Dyspnoea occurs with abducted elbows and extended necks and an expiratory grunt |
| + | **Can be fatal within 1-3 weeks |
| + | **Calves may suffer from [[Joints Inflammatory - Pathology#In Cattle|arthritis]], synovitis and endocarditis |
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| + | *Gross pathology |
| + | **Marbled appearance to lungs with consolidated grey and red lobules separated by emphysematous areas |
| + | **Serofibrinous pleural fluid |
| + | **Necrotic foci surrounded by fibrous capsules in chronic cases act as source of infection |
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| + | *Diagnosis |
| + | **Clinical signs and post-mortem appearance |
| + | **PCR on pleural fluid, lung tissue, regional lymph nodes or bronchoalveolar lavage fluid |
| + | **Fluorescent antibody test |
| + | **Serological tests such as serum agglutination, haemagglutination, complement fixation, ELISA |
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| + | *Treatment and control |
| + | **Slaughter of affected cattle in counries where the disease is exotic |
| + | **Movement restrictions, quaranteen and slaughter of carrier animals in endemic countries |
| + | **Vaccination in endemic regions |
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| + | ===''Mycoplasma bovis''=== |
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| + | *Causes severe pneumonia in calves as a primary pathogen |
| + | *Can occur secondarily to ''Pasteurella'' and ''Mannheimia'' and [[Respiratory Viral Infections - Pathology#In Cattle|IBR]] |
| + | *Associated with [[Joints Inflammatory - Pathology#In Cattle|arthritis]] and mastitis |
| + | *Mastitis associated with a severe drop in milk yield and a purulent discharge |
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| + | ===Contagious agalactia of sheep and goats=== |
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| + | *Severe febrile disease of sheep and goats in parts of Europe, Africa, Asia |
| + | *Caused by ''M. agalactiae'' |
| + | *Mastitis, arthritis and conjunctivitis following parturition |
| + | *Causes abortion |
| + | *Fatal pneumonia in young animals |
| + | *Shed in milk; localised in supramammary lymph nodes |
| + | *Inactivated, attenuated vaccines available |
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| + | ===Contagious caprine pleuropneumonia=== |
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− | *
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| *Cause [[Peritoneal Cavity Inflammatory - Pathology#In sheep|peritonitis in sheep]] and [[Peritoneal Cavity Inflammatory - Pathology#In goats|peritonitis in goats]] and [[Peritoneal Cavity Inflammatory - Pathology#In pigs|peritonitis in pigs]] | | *Cause [[Peritoneal Cavity Inflammatory - Pathology#In sheep|peritonitis in sheep]] and [[Peritoneal Cavity Inflammatory - Pathology#In goats|peritonitis in goats]] and [[Peritoneal Cavity Inflammatory - Pathology#In pigs|peritonitis in pigs]] |
− | *Can be secondary to [[Respiratory Viral Infections - Pathology#In Cattle|IBR]]
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| *[[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of pigs|Enzootic pneumonia of pigs]] caused by ''M. hyopneumoniae'' and ''M. hyorhinis'' | | *[[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of pigs|Enzootic pneumonia of pigs]] caused by ''M. hyopneumoniae'' and ''M. hyorhinis'' |
− | *[[Respiratory Bacterial Infections - Pathology#Contagious bovine pleuropneumonia (CBPP)|Contagious bovine pleuropneumonia]] caused by ''M. mycoides''
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| *''M. bovis'', ''M. dispar'' and ''Ureaplasma'' in [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]] | | *''M. bovis'', ''M. dispar'' and ''Ureaplasma'' in [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]] |
| * May cause [[General Pathology - Chronic Inflammation#Lymphocytic Inflammation|lymphocytic chronic inflammation]] (peribronchiolar and perialveolar cuffing). | | * May cause [[General Pathology - Chronic Inflammation#Lymphocytic Inflammation|lymphocytic chronic inflammation]] (peribronchiolar and perialveolar cuffing). |
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| *''M. ovipneumoniae'' in [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of lambs|enzootic pneumonia of lambs]] | | *''M. ovipneumoniae'' in [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of lambs|enzootic pneumonia of lambs]] |
| *''M. hyosynovia'' and ''M. hyorhinis'' produce syndrome similar to [[Haemophilus species|Glasser's disease]] with milder expression, menigitis rare, [[Joints Inflammatory - Pathology#In Pigs|arthritis]] most consistent | | *''M. hyosynovia'' and ''M. hyorhinis'' produce syndrome similar to [[Haemophilus species|Glasser's disease]] with milder expression, menigitis rare, [[Joints Inflammatory - Pathology#In Pigs|arthritis]] most consistent |
− | *In cattle [[Joints Inflammatory - Pathology#In Cattle|arthritis]]
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