*Infectious [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchiolar]]-[[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|alveolar]] carcinoma caused by a [[Retroviridae|retrovirus]]
+
*Infectious [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchiolar]]-[[Pneumonia Overview#Infectious causes of pneumonia|alveolar]] carcinoma caused by a [[Retroviridae|retrovirus]]
*Commonest under intensive management systems which favour aerosol transmission and close contact of disease
*Commonest under intensive management systems which favour aerosol transmission and close contact of disease