'292 STRONG. 



had been eiuleinic for some time; in these latter phices the stools of 376 

 apparently healthy people who had come in contact with cholera cases were 

 examined bacteriologically, and the cholera vibrio found in 27 (7.02 per 

 cent). After the disappearance of cholera from Manila, a large number 

 of stools from various individuals were examined over an extended period 

 of time but no typical cholera vibrios were isolated from any of them. The 

 stools of 264 apparently healthy individuals in Bilibid Prison in Manila 

 Avere also examined for the cholera vibrio chiring the ei)idemio, and this 

 organism isolated from 17 (6.44 per cent). It seems prol)able tluit the 

 appearance of cholera in Bilibid Prison from time to time, may sometimes 

 ))e due to these cholera spirillum can-iers. It is interesting to note in this 

 connection that all nine of the cases of cholei'a in Taytay occurred within 

 a period of ten days and during the middle of the hot and di-y season. 

 Perhaps for this latter reason the fffices from these cases were rapidly 

 dried by the sun and the cholera sjjii'illa therein tlius killed and not 

 disseminated, hence no widespread epidemic occurred and no cholera 

 "spirillum carriers" were discovered. Had these cases of cholera oc- 

 curred during the rainy season, judging from our past experience, and 

 owing to the conditions of surface drainage in this town, at least a small 

 epidemic of cholera would probably have resulted. 



Only four cases of typhoid fever occurred during the tliree months that 

 the examinations were carried on. There can be no serious ground for the 

 idea that typhoid fever is a comparatively rare disease in the Philippines 

 and that those cases which are found in the Islands have been imported. 

 In the year 1900, I reported to the Surgeon-General of the United States 

 Army fifty-four autopsies upon cases of typhoid fever occurring in Manila. 

 During the same year there were 328 positive Widal senim reactions 

 for typhoid fever observed in the laboratory. Typhoid' fever is not 

 nearly so prevalent in Manila and the vicinity as it was during 1900, 

 but since that year the disease has not been at all uncommon, and there 

 is no question but that it is endemic in the Islands and that the large 

 majority of the cases are certainly not imported. 



In regard to the improvement of the drinking water supply of 'J'aytay, 

 it is fortunate that the geological strata is favorable to drilling; Doctor 

 Adams has reported it is possible that in the southwestern part of the 

 town sufficient hydrostatic head might be encountered to produce an 

 artesian flow. It is recommended that a deep M^ell be di-illed at this 

 place with the hope of obtaining artesian water. In case artesian water 

 is not obtained, the remaining wells which might be drilled in the town 

 should be made only sufficiently deep to prevent surface filtration. 



The food of the inhabitants of Taytay was found to be of limited variety 

 and ahiiost entirely of local production; some dried fish is imported from 

 Manila. The staple diet consists largely of fish and rice with some 

 fruits and vegetables, and occasionally carabao milk, butter and eggs 



