MEDICAL SURVEY OF THE TOWN OF TAYTAY. 



X. ANIMAL PARASITES OF THE INTESTINE. 



By Philip E. Garrison,^ Ricakdo Leynes, and Rosendo Llamas. 



Table 1. — Summary of findings. 



Examinations and infections. 



Num- 

 ber. 



Per 

 cent. 



Examinations and infections. ^^^' 



Per 

 cent. 





1,000 

 959 



829 

 770 

 116 



7 

 4 





Persons infected with— 



Amoiba : 27 



Ciliates 2 



Flagellates ; 55 



Encysted protozoa 1 11 



2.7 

 0.2 

 5.5 

 1.1 



Persons infected 



Persons infected with — 

 Ascarls 



95.9 



82.9 

 77.0 

 11.6 

 0.7 

 0.4 



' Trichan." 



Hookworms 



Total infections 1,821 



Intestinal worms alone" 1,726 



1 



182. 1 

 172.6 



Stronqyloides 



Oxyuris .^ 





•'' Microscopic examination of the fresh sputum of 110 persons and of the centrifuged 

 urine of 26 persons respectively failed to show ova of Paragonimus and of Schistosoma. 

 There was no clinical evidence of these infections. 



INTRODUCTION. 



The inauguration of the work at Taytay offered an opportunity for the 

 first time to determine the frequency of infection with intestinal parasites 

 in a normal and fairly typical Filipino community. Practically all of our 

 previous knowledge of this subject in the Philippines has been based upon 

 the results of work done at Bilibid Prison, in the hospitals of Manila, and 

 in militaiy organizations. Prom these results certain tentative deduc- 

 tions have been made with regard to the rates of infection with the 

 various parasites in question which might be expected in the Philippine 

 population as a whole. It is our purpose in presenting the results found 

 at Taytay to consider in conjunction with them these earlier figures and 

 to draw such conclusions as may be warranted regarding the true signifi- 

 cance of these infections in th^ Philippines in the light of our additional 

 knowledge concerning: them. 



^Assistant surgeon, United States Navy; detailed medical zoologist to 

 Biological Laboratory, Bureau of Science. 



257 



the 



