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Enzootic Pneumonia - Pigs (view source)
Revision as of 17:23, 7 September 2011
, 17:23, 7 September 2011no edit summary
==Introduction==
==Introduction==
[[Image:Enzootic pneumonia of pigs.jpg|right|thumb|200px|Enzootic pneumonia of pigs (Image sourced from Bristol Biomed Image Archive with permission)]]
[[Image:Enzootic Pneumonia Lesion1.jpg|right|thumb|200px|Lesions of uncomplicated enzootic pneumonia in the cardiac lobes of pig lungs at slaughter. (Source: Prof Andrew Rycroft)]]
Enzootic pneumonia in pigs is a '''[[:Category:Respiratory Diseases - Pig|respiratory disease]]''' caused by '''''[[Mycoplasma hyopneumoniae]]'''''. The disease is associated with a significant loss of production in intensively reared pigs. The organism alone causes a mild disease with characteristic lesions but it also enables other pathogens , particularly '''''[[Pasteurella multocida]]''''' to cause secondary pneumonia which can be more severe. '''''[[Streptococcus suis]]'', ''[[Haemophilus parasuis]]'' and ''[[Actinobacillus pleuropneumoniae]]''''' are other pathogens that may be more likely to cause disease when enzootic pneumonia is present. Enzootic pneumonia is frequently a component of '''Porcine Respiratory Disease Complex''', when combined with other agents such as [[PRRS]], '''[[Porcine Circoviruses|Porcine Circovirus 2]] and/or [[Swine Influenza]]''' and bacteria.
Enzootic pneumonia in pigs is a '''[[:Category:Respiratory Diseases - Pig|respiratory disease]]''' caused by '''''[[Mycoplasma hyopneumoniae]]'''''. The disease is associated with a significant loss of production in intensively reared pigs. The organism alone causes a mild disease with characteristic lesions but it also enables other pathogens , particularly '''''[[Pasteurella multocida]]''''' to cause secondary pneumonia which can be more severe. '''''[[Streptococcus suis]]'', ''[[Haemophilus parasuis]]'' and ''[[Actinobacillus pleuropneumoniae]]''''' are other pathogens that may be more likely to cause disease when enzootic pneumonia is present. Enzootic pneumonia is frequently a component of '''Porcine Respiratory Disease Complex''', when combined with other agents such as [[PRRS]], '''[[Porcine Circoviruses|Porcine Circovirus 2]] and/or [[Swine Influenza]]''' and bacteria.
==Diagnosis==
==Diagnosis==
[[Image:Peribronchiolar Cuffing Enzootic Pneumonia1.jpg|right|thumb|200px|Peribronchiolar cuffing in enzootic pneumonia. The lymphoid cells with dark blue nuclei surround the bronchiole. This is an alveolitis. A lymphoid follicle is developing in the upper right of the picture. The alveoli contain cells which have infiltrated the pulmonary tissues. Inflammatory cells are also crossing the bronchiolar epithelium and the lumen of the bronchiole contains inflammatory cells indicating a bronchopneumonia. The ''Mycoplasma hyopneumoniae'' organisms cannot be seen but would be located on the epithelial surface of the bronchiole. (Source: Prof Andrew Rycroft)]]
EP is often suspected if coughing pigs are present at the appropriate age.
EP is often suspected if coughing pigs are present at the appropriate age.