110 PARASITOLOGY. 



BRONCHIAL AND PULMONARY STRONGYLOSIS. 



This condition is also called Verminous Bronchi^ 

 tis, or Verminous Pneumonia. 



In Bronchial Strongylosis the worms are found 

 coiled in small balls in the bronchial tubes ; their 

 presence causes bronchitis and may occlude the 

 bronchial tube. 



In Pulmonary Strongylosis the worms find their 

 way to the air saccules and produce a like condition. 

 Broncho=pneumonia may develop as a result of in- 

 festation of both bronchi and air saccules. The 

 bronchial type of the disease is most often found in 

 the young animals, while the pulmonary form is 

 found in the old ones. All animals are infested by 

 their respective species of the genus Strongylus. 



Symptoms. — At autopsy, a few worms have been 

 found in the lungs of animals that showed no signs 

 of disease during life. The symptoms are slight at 

 the commencement of an attack ; there is a loss of 

 appetite and an unthrifty appearance of the animal, 

 and finally emaciation. There is a rise of tempera- 

 ture ; accelerated respiration due to the plugging of 

 the bronchi with worms and mucus. 



It is accompanied by a cough which becomes more 

 painful as the disease progresses. In later stages 

 the fits of coughing are accompanied with convul- 

 sions, and the animal finally dies of suffocation. The 

 animal may expectorate ova or larvae. Upon aus- 

 cultation mucus rales may be heard ; dullness may be 

 noted on percussion. 



Treatment. — The problem of medicating large 

 numbers of cattle, sheep or hogs infested by the lung 

 worms is somewhat difficult. In horses and asses 



