Report. [1918]

14

cities: Albay, Baguio, Bayambong, Bontoc, Butuan, Cotabato,
Cuyo, Dapitan, Iwahig, Jolo, Kiangan, Lanao, Naga, Tacloban,
and Zamboanga. Totals of attendance, treatments and deaths
in these hospitals, Bilibid and San Lazaro and the Culion Leper
Colony excepted, are given below:
Total number of patients on hand, January 1, 1918.....-.................... 125
Total number of patients admitted during 1918................................ 7,573
Total number of patients treated during 1918................................ 7,698
Total deaths...-....-.-....... ------- 264
Mortality rate -....................... --- —-...-. per cent.... 3.41
SANITATION BILIBID PRISON.
The chief causes of mortality among the prisoners at Bilibid
were pulmonary tuberculosis, intestinal parasites, amoebiasis, venereal diseases among the new arrivals, contagious eye diseases,
grippe and respiratory diseases.
In a total of 16,476 stool examinations performed during the
year in connection with the intestinal parasites survey, 4,634
were found positive for intestinal parasites distributed as follows:
Ascaris lumbricoides............................... 2,409
Hookworm....-.....................-................ 1,636
Amoeba coli. --- ——. —........-....... 558
Amoeba histolytica...2..-......-........ 21
Taenias......-.... —..-. —.......-... 10
The proportion of the prison population found infected with
parasites was 29.94 per cent, or a little less than one-third. Of
those found harboring parasites, 51.96 per cent, or a little over
one-half were found infested with round worms, 35.30 per cent
afflicted with hookworm, 12.04 per cent with amoeba coli, 0.4 per
cent with amoeba histolytica and 0.21 per cent with taenia.
Bilibid Prison was free from cholera during the entire year.
Out of 91,999 cultures taken and sent to the Bureau of Science
for examination only one man was found to be a positive cholera
carrier. This comparative immunity of the institution from
cholera infection was due to the stringent measures taken by
the prison officials to prevent the entrance of infection from
outside, and to the strictly hygienic way in which the prisoners
were fed.
Twelve cases of beriberi were treated during the year, most
of these cases having occurred amongst new comers or prisoners
working outside and in the provinces. The use of unpolished
rice has greatly diminished the incidence of this disease in Bilibid Prison during the past few years.
During the influenza epidemic of October and November, almost all of the inmates of the prison fell victims to the disease,