20, 6 Schwartz and Tubangui: Parasites of Man 617 
tive hosts in the Philippines because of the possible absence of 
intermediate hosts. In the absence of such knowledge precau- 
tionary measures are warranted, and Chinege, Japanese, and 
other immigrants arriving from countries where dangerous pa- 
rasites of man are prevalent should be subjected to examination 
for parasites before being admitted to the Islands. 
A case of infestation with Echinostoma tlocanum was found 
in a student, 22 years of age, a native of Zambales Province, 
Luzon. A second case of infestation with this parasite was 
found in a student, 23 years of age, from Ilocos Norte Province, 
northern Luzon. 
This species, which has not been recorded outside of the 
Philippines, was first described by Garrison,(6) who found only 
5 cases in about 5,000 fecal examinations. All of Garrison’s 
cases are individuals from northern Luzon. Willets(16) records 
a probable case of infestation with Echinostoma tlocanum, but 
makes no definite diagnosis. Hilario and Wharton(9) record 
5 cases of infestation with this parasite, 4 of which are from 
Zambales Province; no data were given for the fifth case. 
Nothing very definite is known concerning the possible patho- 
genicity of this parasite. Garrison’s patients showed no symp- 
toms and did not complain of feeling unwell. In the cases 
reported by Hilario and Wharton a slight anemia was ap- 
parently present. 
SUMMARY AND CONCLUSIONS 
1. Three new cases of infestation with Txnia are recorded. 
2. Data with reference to the occurrence of Cysticercus cellu- 
losz in native hogs show that from 1 to 1.5 per cent are infested. 
3. A case of infestation with Hymenolepis diminuta is re- 
corded. This is the first case in which this parasite has been 
reported from a Filipino and the second case that has been 
recorded from the Philippine Islands. 
4. A case of Clonorchis sinensis is reported from a Chinese 
student. This is the third case that has been reported from the 
Philippines. 7 
5. Two cases of infestation with Echinostoma ilocanum, a 
species apparently confined to Filipinos of northern Luzon, are 
reported. : 
6. To prevent infestation of man with Txnia solium, Tenia 
Saginata, and Cysticercus cellulose and to eradicate infestation 
of hogs with Cysticercus cellulose and of cattle with Cysticercus 
bovis, as well as to safeguard the provincial population against 
