Changes

*Mild conjunctivitis, serous purulent [[Nasal Cavity Inflammatory - Pathology#Infectious causes of rhinitis|rhinitis]] and conjunctivitis, in severe cases mild [[Lungs Inflammatory - Pathology#Bronchointerstitial pneumonia|bronchointerstitial pneumonia]] - feline pneumonitis

*Mild conjunctivitis, serous purulent [[Nasal Cavity Inflammatory - Pathology#Infectious causes of rhinitis|rhinitis]] and conjunctivitis, in severe cases mild [[Lungs Inflammatory - Pathology#Bronchointerstitial pneumonia|bronchointerstitial pneumonia]] - feline pneumonitis

===[[Mycoplasmas|''Mycoplasma felis'']]===

===[[:Category:Mycoplasmas|''Mycoplasma felis'']]===

*Can also cause mild respiratory infection

*Can also cause mild respiratory infection

[[Image:Contagious bovine pleuropneumonia.jpg|right|thumb|100px|<small><center>Contagious bovine pleuropneumonia (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Contagious bovine pleuropneumonia.jpg|right|thumb|100px|<small><center>Contagious bovine pleuropneumonia (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

*Caused by [[Mycoplasmas|''Mycoplasma mycoides'']], small colony variant

*Caused by [[Mycoplasma mycoides subsp. mycoides|''Mycoplasma mycoides'']], small colony variant

*Causes a fibrinonecrotic [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] and [[Pleural Cavity & Membranes Inflammatory - Pathology|fibrinous pleuritis]]

*Causes a fibrinonecrotic [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] and [[Pleural Cavity & Membranes Inflammatory - Pathology|fibrinous pleuritis]]

*Also affects caudodorsal areas

*Also affects caudodorsal areas

*Usually the primary pathogen is a virus, secondary pathogens are bacteria and mycoplasmas

*Usually the primary pathogen is a virus, secondary pathogens are bacteria and mycoplasmas

*Pathogens:

*Pathogens:

**[[Mycoplasmas|''Mycoplasmas'']]

**[[:Category:Mycoplasmas|''Mycoplasmas'']]

***Mycoplasmal [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis]] and [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] of calves is an important component of the syndrome of enzootic pneumonia

***Mycoplasmal [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis]] and [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] of calves is an important component of the syndrome of enzootic pneumonia

***On its own causes Mycoplasmal ("Cuffing") pneumonia responsible for [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis and bronchiolitis]] and [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|bronchointerstitial pneumonia]]

***On its own causes Mycoplasmal ("Cuffing") pneumonia responsible for [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis and bronchiolitis]] and [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|bronchointerstitial pneumonia]]

===Enzootic pneumonia of lambs===

===Enzootic pneumonia of lambs===

*Caused by [[Pasteurella species and Mannheimia haemolytica|''Pasteurella (Manheimia) haemolytica'']], possibly together with [[Mycoplasmas|''Mycoplasma ovipneumoniae'']]

*Caused by [[Pasteurella species and Mannheimia haemolytica|''Pasteurella (Manheimia) haemolytica'']], possibly together with [[:Category:Mycoplasmas|''Mycoplasma ovipneumoniae'']]

*Mainly in late spring/early summer after environmental stress i.e. handling or moving

*Mainly in late spring/early summer after environmental stress i.e. handling or moving

*May be acute with producing a fibrinonecrotic [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] and associated [[Pleural Cavity & Membranes Inflammatory - Pathology|pleuritis]]

*May be acute with producing a fibrinonecrotic [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] and associated [[Pleural Cavity & Membranes Inflammatory - Pathology|pleuritis]]

[[Image:Enzootic pneumonia of pigs.jpg|right|thumb|100px|<small><center>Enzootic pneumonia of pigs(Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Enzootic pneumonia of pigs.jpg|right|thumb|100px|<small><center>Enzootic pneumonia of pigs(Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

*Caused by [[Mycoplasmas|''Mycoplasma hyopneumoniae'']] and [[Mycoplasmas|''M. hyorhinis'']]

*Caused by ''[[Mycoplasma hyopneumoniae]]'' and ''[[Mycoplasma hyorhinis]]''

*Also called '''mycoplasmal pneumonia'''

*Also called '''mycoplasmal pneumonia'''

*Major cause of unthriftiness in young pigs

*Major cause of unthriftiness in young pigs

*[[Pasteurella species and Mannheimia haemolytica|''Pasteurella multocida'']] can cause a severe acute fibrinous [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] in pigs  

*[[Pasteurella species and Mannheimia haemolytica|''Pasteurella multocida'']] can cause a severe acute fibrinous [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] in pigs  

*The most significant disease here is that caused by ''P. multocida'' secondary to underlying [[Mycoplasmas|''mycoplasma'' pneumonia]], see above [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of pigs|enzootic pneumonia of pigs]]

*The most significant disease here is that caused by ''P. multocida'' secondary to underlying [[:Category:Mycoplasmas|''mycoplasma'' pneumonia]], see above [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of pigs|enzootic pneumonia of pigs]]

**This results in chronic suppurative [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchopneumonia]]  with abscessation and [[Pleural Cavity & Membranes Inflammatory - Pathology|pleuritis]]

**This results in chronic suppurative [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchopneumonia]]  with abscessation and [[Pleural Cavity & Membranes Inflammatory - Pathology|pleuritis]]

*If there is considerable pleural involvement, it may be indistinguishable from lesions caused by ''[[Haemophilus pleuropneumonia]]'' (below)

*If there is considerable pleural involvement, it may be indistinguishable from lesions caused by ''[[Haemophilus pleuropneumonia]]'' (below)