DIAGNOSIS 



IOI 



filaria are found in the peripheral blood taken during 

 the night. There is a varying degree of eosinophilia, 

 usually moderate. 



F. Bancroft! x 200, Development. 



(T. L. Bancroft.) 



c = head. 



FIG. 43. Stages in development of larva of Filaria bancrofti in mosquito. 



The differentialdiagnosis on morphological characters 

 of filarial embryos found in the blood will be considered 

 later in detail. 



