﻿368 



The Philippine Journal of Science 



1914 



Seasonal incidence is a characteristic of typhoid in Europe 

 and the United States where the greatest prevalence is seen 

 during the autumn months, continuing into the winter, and 

 declining during the spring months. Examination of the fol- 

 lowing table indicates the same seasonal distribution in this 

 country that is encountered in temperate climates. However, 

 the variation is not so marked and the series of cases is too small 

 to justify definite conclusion. 



Table I. — Seasonal incidence of typhoid in the Philippine Islands. 



Month. 



Number of cases. 



Total. 



1912. 



1913. « 



January _. . 



1 

 3 

 4 

 5 

 7 

 2 

 6 

 2 



9 



7 



5 



6 



8 



3 



6 



8 



11 



15 



11 



9 



29 



1 " 



1 " 



44 



February , . . _ _. 



March _. . _ 



April . 



May 



June 



July -. . 



August — 



September - 



October _ 



2 

 2 



5 



November 



December 



Total 



39 



98 



137 





" Figures for the fiscal year 1913 are incomplete. The last case in this series was on May 28. 



Sex. — The sex incidence of 85 males and 40 females out of a 

 total of 125 cases corresponds closely enough with sex statistics 

 of this disease in other countries. 



Age. — The distribution of the disease by ages is shown in the 

 following table. 



Table II. — Age incidence of typhoid in the Philippines. 



Males -. 



Females 



Total... 



Percentage .. 



Rogers 



Curschmann: 

 Hamburg 

 Leipsic... 



Osier 



Age. 



10 

 years. 



11 to 14 

 years. 



12 



9.6 

 41.6 



11.02 

 9.59 

 7.73 



15 to 25 26 to 3031 to 40 

 years, years, years. 



63 



29 



82 



65.6 

 47.23 



48.68 

 49.40 

 46.69 



13 



10 

 2 



28 



22.4 

 11.1 



30.3 



40.01 



46.58 



Over 

 41 



years. 



2.4 



Total. 



85 

 40 



125 



