Careful scientific investigation carried on at the bureau of science taught us the best methods of combating this type of dysentery, and the proper disposal of human feces, the regulation of methods used in fertilizing vegetables, improvement in supplies of drinking water, and other simple, hygienic measures have reduced the deaths from it among Americans to an almost negligible minimum. Such cases as occur are almost without exception detected early, and readily yield to treatment.
The belief that Filipinos do not suffer from this disease has proved to be without foundation. It kills thousands of them every year. Those who are willing to adopt the simple precautions which experience has shown to be necessary may enjoy the large degree of immunity from it which Americans now have.
The chief cause of amoebic dysentery in the Philippines has undoubtedly been infected drinking water. From time immemorial the people have been obtaining their water for drinking purposes from flowing streams, open springs or shallow surface wells.
The wells were especially dangerous, as it was the common custom to wash clothing around them so that water containing disease germs frequently seeped into wells used by whole villages. The results of such conditions during a cholera epidemic can readily be imagined.
The drinking supplies of many provincial towns have now been radically improved by the sinking of 853 successful artesian wells.
In many places there has been a resulting reduction of more than fifty per cent in the annual death rate. Large sums are spent yearly by the government in drilling additional wells,—a policy which is warmly approved by the common people. The recent appropriations for this purpose have been $255,000 for the fiscal year 1912, $60,000 for 1913 and $200,000 for 1914.
When we came to the islands, malaria was killing as many persons as was smallpox. The mortality caused by it is now being greatly reduced by giving away annually millions of doses of quinine, and by draining or spraying with petroleum places where mosquitoes breed, as well as by teaching the people the importance of sleeping under mosquito nets and the necessity of keeping patients suffering from active attacks of malaria where mosquitoes cannot get at them. Only quinine of established quality is allowed in the market.
The results obtained in combating malaria are often very striking. Calapan, the capital of Mindoro, was in Spanish days known as “the white man’s grave” on account of the prevalence of “pernicious fever” there. To-day it is an exceptionally healthy provincial town.
At Iwahig, in Palawan, the Spaniards attempted to conduct a penal colony. They were compelled to abandon it on account of pernicious malaria, which caused continued serious mortality when the American government attempted to establish a similar institution there. Application of the usual sanitary measures has made it a healthful place.
Old jails throughout the islands have been rendered sanitary, or replaced by new ones. The loathsome skin diseases from which prisoners formerly suffered have in consequence disappeared. The practical results obtained in Bilibid, the insular penitentiary, are worthy of special note. The annual death rate at this institution was 78.25 per thousand for the calendar year 1904. It increased steadily each month from January, 1904, to September, 1905, when it reached its maximum, deaths occurring at the rate of 241.15 per thousand per year. At this time the director of health was given charge of the sanitation of this prison.