One of the most important respiratory disease of pigs caused by Actinobacillus pleuropneumoniae, by stress, such as poor ventilation, climate change, transport, breeding density, the greater susceptibility to the disease. And in particular to indicate sudden mortality in growing pigs from to market pigs , susceptible regardless of age. Increased mortality due to acute case and reduced feed efficiency and economically costly disease to the growth delayst by he chronic forms.
 
1. Agent
  Actinobacillus pleuropneumoniae
12 kinds of serotypes have been identified throughout the world is mainly 1, type 2 and type 5 this problem.
  
2. Epidemiology
  Partly as a disease caused all over the world, and is caused to continue and sporadically.
 
3. Clinical Signs
  . Per acute type: high fever, insensible, loss of appetite seems to be within 24 hours and almost die.
. Acute type: high fever as a clinical form the majority of the pleural pneumonia, depressed, anorexia, dyspnea, coughing, breathing openings, showed persistent symptoms such as abdominal breathing continuing 2-3 days or become stunted into a chronic type or die.
. Chronic type: weak fever, occasional cough, arthritis and endocarditis, it seems even edema. One can see a bleeding nose and move onto the clinical and pathological findings accompanied by bloody pleural effusion is a characteristic plastic fiber. There is closing hard noticeable to dark red.


4. Prevention and Treatment
1) Prevention
  Proper breeding numbers, adequate ventilation, and the removal of periodic disinfection, pens within the dust and gas of pig stall

2) Vaccination
   AR·P·H, PA or autogeneous vaccine.

3) Treatment
  The use of antibiotics by the emergence of resistant strains, so many susceptibility testing should be careful.
Ampicillin, Amoxacillin, Tiamulin, Tetracycline, Sulfa+TMP are valid.