﻿IX, B, 2 Sanitary Survey in Mindoro 



Table IV. — Summary of the leucocyte counts — Continued. 



171 



Leucocytes. 



Cases falling into different percentage groups. 



41-45. 



46-50. 



51-55. 



56-60. 



61-65. 



66-70. 



71-75. 



76-80. 



Neutrophiles _ _ _ _ _.__-_ 



15 



21 

 2 



26 



24 



17 



16 



13 



5 





















Lymphocytes ^ 



7 2 



4 







1 













1 



The variation from the normal in these leucocyte counts is 

 best brought out by another table which shows for each type of 

 leucocyte the number and percentages of cases having a normal 

 count and those having counts below and above the normal. 



Table V. — Num,bers and percentages of normal and abnormal leucocyte 



counts. 



Leucocytes. 



Cases having a 



count below 



normal. 



Cases having a 

 normal count. 



Cases having a 



count above 



normal. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 



cent. 



Num- 

 ber. 



Per 



cent. 



Neutrophiles (normal count, 60-75 per cent) 



Eosinophiles (normal count, 2-4 per cent) 



Large mononuclear and transitional (normal 



107 

 21 



20 

 49 



64.84 

 12.72 



12.12 

 29.69 



52 

 32 



61 

 72 



31.51 

 19.39 



36.96 

 43.63 



6 

 112 



84 

 44 



3.63 



67.87 



50.90 

 26.66 



Lymphocytes (normal count. 20-30 per cent) 



From Table V it is seen that in 64.84 per cent of these cases 

 of malarial infection there was a diminution in the proportion 

 of polymorphonuclear neutrophile leucocytes. This diminution 

 in the neutrophiles appears to be more or less compensated for 

 by an increase in the eosinophiles and large mononuclear leuco- 

 cytes, 67.87 per cent of the cases showing an increase in the 

 proportion of the eosinophiles and 50.90 per cent an increase 

 in the proportion of the large mononuclears. The lymphocytes 

 have a count below and above the normal in about an equal 

 number of cases. 



In only 15 of the 373 cases of malarial infection were large 

 mononuclear leucocytes containing malarial pigment observed. 



The conclusion of practical importance to be drawn from the 

 blood examinations in these cases is that the blood picture, apart 



