Changes

*2 forms of the disease

*2 forms of the disease

**''''Progressive' atrophic rhinitis'''

**''''Progressive' atrophic rhinitis'''

***Due to infection of the nasal turbinates by P.multocida strains carrying the toxA gene that encodes for an osteolytic toxin. [[Pasteurella multocida|''P.multocida'']] adheres poorly to mucous membranes, and therefore requires a predisposing nasal insult to assist colonisation eg: co-infection with [[Bordetella bronchiseptica|''B.bronchiseptica'']] or [[Cytomegalovirus|Porcine cytomegalovirus (inclusion body rhinitis)]]

***Due to infection of the nasal turbinates by P.multocida strains carrying the toxA gene that encodes for an osteolytic toxin. [[Pasteurella multocida|''P.multocida'']] adheres poorly to mucous membranes, and therefore requires a predisposing nasal insult to assist colonisation eg: co-infection with [[Bordetella bronchiseptica|''B.bronchiseptica'']] or [[Porcine Cytomegalovirus|Porcine cytomegalovirus (inclusion body rhinitis)]]

***Turbinate bone atrophy is permanent and progressive

***Turbinate bone atrophy is permanent and progressive

**''''Non-progressive' atrophic rhinitis'''

**''''Non-progressive' atrophic rhinitis'''

***Turbinate bone can regenerate by the time of slaughter

***Turbinate bone can regenerate by the time of slaughter

*''[[Bordetella bronchiseptica]]'' also causes [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]]

*''[[Bordetella bronchiseptica]]'' also causes [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Pneumonia Overview#Infectious causes of pneumonia|pneumonia]]

[[Category:Respiratory Diseases - Pig]]

[[Category:Respiratory Diseases - Pig]]

[[Category:Respiratory_Bacterial_Infections]]

[[Category:Respiratory_Bacterial_Infections]]