﻿IX. B, 5 Willets: Malaria in General Hospital, Manila 

 Table VI. — Leucocyte counts. 



447 



Examinations and counts. 



Persons not examined 



Persons examined 



Persons with counts, per c. mm., of 



2,600 to 2.900 - 



3.000 to 3.90O 



4,000 to 4900 



5,000 to 5.900 



6.000 to 6.900 - 



7.000 to 7.900 



8.000 to 8.900 



9,000 to 10.000 



10.100 to 10.900 



11,000 to 11.900 



12,000 to 13,000 



Total 



131 



Number. 



Per cent. 



54 

 131 









3 



2.3 



13 



9.9 



23 



17.6 



23 



17.6 



26 



19.8 



12 



9.2 



12 



9.2 



6 



4.5 



5 



3.8 



5 



3.8 



3 



2.3 



100.0 



The counts were made as soon as possible after admission. 

 As a rule one count was made on each case, a Turck's counting 

 chamber being used. 



If from 6,000 to 10,000 leucocytes per cubic millimeter of 

 blood are accepted as normal, the approximate average count 

 would be about 8,000. In this series of cases the average count 

 was about 6,420 which, although within normal limits, is so 

 near the lower limit that it represents a leucopenia. Sixty-two, 

 or 47.3 per cent, had a definite leucopenia ; 56, or 42.7 per cent, 

 a normal count; and 13,'or 10.0 per cent, a leucocytosis. It will 

 be recalled that cases with complications, which would obviously 

 influence the leucocyte count, were excluded from this series 

 and that the individuals in whom these infections occurred 

 entered the hospital because of malaria. These results, there- 

 fore, apparently represent the leucocyte counts in malaria for 

 this locality. 



Thomson 2 found that the absolute count in malaria varies 

 considerably. During sporulation, if it be slight (as occurs in 

 latent or apparently cured cases), a leucocytosis is present, 

 whereas, if it be marked (as exists during a definite paroxysm) , 

 there is almost invariably a leucopenia. Between paroxysms in 

 cases of marked acute malaria the count increases up to or even 

 beyond the normal count. These findings may explain some of 

 the normal and abnormally high counts in the series of cases 

 here reported. It would appear, however, that 52.7 is a rather 



Ann. Trap. Med. & Parasit. (1911-1912), 5, 83; ibid. (1912), 6, 215. 



