MEDICAL SURVEY OF THE TOWN OF TAYTAY. 261 



Table 5. — Age disti ibiition of infections, females. 



Age (years). 



Total 

 number 



Total 

 infected. 



Ascaris. 



Trichuris. 



Hook- 

 worms. 



Strongy- 

 loides. 



exam- 

 ined. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 





 



1 



6 

 9 

 12 

 4 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Under 2 



36 

 47 

 71 

 34 

 107 

 130 

 66 



25 

 45 

 70 

 34 

 104 

 130 

 66 



69.4 

 95.7 

 98.6 

 100.0 

 97.2 

 100.0 

 100.0 



22 

 43 

 65 

 31 

 94 

 111 

 55 



61.1 

 91.5 

 91.5 

 91.2 

 87.9 

 85.4 

 83.3 



12 

 34 

 61 



29 

 85 

 108 

 55 



33.3 

 72.3 

 85.9 

 85.3 

 79.4 

 83.1 

 83.3 



1.4 

 17.6 



8.4 

 9.2 

 fi. 1 





 1 

 1 

 

 

 

 



2.1 

 1.4 



2 to 4 



5 to 9 — 



10 to 14 ... 



15 to 29 



30 to 49 



50 and over 



Under 15 ... 



15 and over. 



'" 



188 

 303 



■ 



174 

 300 



92.6 

 99.0 



161 

 260 



85.6 

 8.5.8 



136 

 248 



71.8 

 81.5 



7 

 25 



3.7 

 8.3 



2 

 



1.1 







Age (years). 



Oxyuris. 



Amoeba. 



Clliates. 



Flagellates. 



Encysted 

 protozoa. 



Total 

 infections. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Num- 

 ber. 



Per 

 cent. 



Under 2 



1 



1 

 1 

 

 

 

 



2.8 

 2.1 

 1.4 





 1 

 3 

 

 5 



2.1 

 4.2 



4.7 

 2.3 

 1.5 





 

 





 1 

 



0.8 



2 

 

 3 

 4 

 6 

 6 

 2 



5.5 



4.2 

 11.8 

 .5.6 

 4.6 

 3.0 





 1 



1 

 



2.1 

 1.4 



37 



81 

 136 



70 

 199 

 241 

 118 



102.8 

 172.3 

 191.6 

 205.9 

 186.0 

 185.3 

 163.6 



2 to 4 



5 to 9 



10 to 34 



15 to 29 













30 to 49 



i 3 



1 



50 and over 



I'nder 15 



1 



1.5 



3 

 



1.6 i 4 



2,1 

 3.0 







1 



0.3 



9 

 14 



5.3 

 4.6 



2 

 1 



1.1 

 0.3 



324 



558 



172.3 



184.2 



15 nnd over 





9 





INTESTINAL WORMS. 



The results of the examinations at Taytay agree with those of the 

 other series in showing the Filipinos almost universally infected with 

 intestinal worms. Of the 4,106 prisoners examined at Bilibid about 

 84 per cent were infected; of the 385 women and children in Manila. 

 89 per cent. At Ta3'tay, infections with intestinal worms were found in 

 96 (95.9) per cent. 



The average number of infections with intestinal worms for each 

 100 persons examined (indicating multiplicity of infection) was 172.6 

 at Tayta}', 138.7 among Manila women and children, and 143 among 

 Bilibid prisoners. 



Eeferring to Table 2, it will be noted that there is practically no dif- 

 ference between the sexes with regard to the percentage infected or to the 

 average number of infections per 100, though the prevalence of certain 

 individual parasites differs materially. 



