16, 1 Haughwout and Horrilleno: Intestinal Parasites 7 
immediate surroundings and the water drunk have less bearing 
on the incidence of parasitism than is generally believed. We 
have recorded children living under the best hygienic conditions 
as regards cleanliness of surroundings but who, notwithstanding, 
were more or less heavily parasitized; and, in contrast, we have 
found instances where the children lived in surroundings that 
were filthy and overcrowded, but who survived the ordeal and 
failed to exhibit the slightest evidence that they were parasitized 
with either helminths or protozoa. It is perhaps easier to ex- 
plain the first than the second condition. 
The geographical distribution of our cases is set forth in 
Tables 3 and 4. 
TABLE 3.—Incidence of parasitism in Manila, 
[ Para- ‘Not pal 
District. Cases. | sitized. | sitized. 
Pah ae eet ek os oc) eae eee aes bn heeds saee 2 1 1 
TOUTE Ste es ee GAG te ea Ce on buet caanal ad ak cue 5 @ feos Pe 
PGeenivee oe . e e ea e 1 Riladeeece 
LOO iiss 5 a va, a tiene ae bons Hed oeeaaewes mae ae 7 sf CE ee 
rs So a sas a le eee eaceakne see 10 1 Bataan 
DROID oe es ee ig pannisnblac ene beedaealigs 1 be Patten s tes 
Rultipe os. a kes aoa Skee 1 | ae eee 
aa UNO gigi ooo i ee re ea ic renin ss Snes Sei eS ener 9 8 rt 
FO tha ind DEO Re eager oe no oh re mee oy fama nn A 2 1 1 
Pome WOON ee ase er oe ee, Se eS ae 1 5 Ree ee 
Dts Ae ee ee ees 4 tg are gi 
WO SATIN SS eh ee Baca bap ae Roane 1 Ay ea ee eee 
Pench UE oo oe ce a ae eae eee ee ee ee aes 12 9 3 
atte Missi ooo ee a ee ee 8 8 eek 
SR Ca or ig eee eee 6 Dk et Eater 
SRN ob pilin snc ee Sea ese ae er EE on on ee de ee 5 DS Bee sears 
ONS Cota. Somas Seti a eee ok ee bl eee eege poe umece 2 _ 5 Rar es 
MOAT ITNED oo oes 5 sa es ee wn We ec 5 Cite 
TNO os os ac Saisie eae cs kaw ae cums aaa ey 7 71 6 
TABLE 4.—Incidence of parasitism in the provinces. 
Province. Cases. ginny gard rag 
fT Be a een GSE eae Dem oe penn eral Ree, oe | ee 1 
UAC oe eee er ce ee 1 Ee amen aren 
Te A So ee. a ee a ee 1 Pisa 
Ria i a aa te cepa pened iad ant Sateen ost meee 5 Paes 
ent 2 Sl gS seen apes Seer econ Ie Kwa ei Z 1 5 Plewic eaatean te 
Nueva Ecija ie se ene pe re oe ee oe eee es eee 1 be Say ea on 
RT ee ae occ ek See ce ebiee 2 Ee ager oe on 
PNG oe ae Sig on, 2 | i BRE aeee 
RR a a a a es a ee a a ae on ae, 9 . g eee setae, x 
a ae ear wcanie ec cue 23 22 1 
