16, 1 Haughwout and Horrilleno: Intestinal Parasites 45 
Da Matta(18) has reported two rather interesting cases of 
Trichuris infection in young children that were associated 
with fatal results. They were encountered in a study of hel- 
minthal infections in a large series of children at Manaos, 
during which he found an incidence of Tvrichuris infection 
amounting to 82.3 per cent. 
The first case was in a child 4 years old, very pale and cede- 
matous. The total erythrocyte count was 580,000; eosinophiles, 
14.3 per cent. The hemoglobin was 15 per cent. The stools 
showed numerous ova and abundant mucus. There was hy- 
peralgesia of the skin—marked over the cecum and colon. 
At autopsy two hundred ninety-five Trichuris were found in 
the colon. 
The other case was that of a child 8 years old. At autopsy 
eleven Trichuris were found in the lumen of the appendix at- 
tached to the wall, while one hundred nine were collected from 
the cz#cum. 
Musgrave and Clegg,(45) in their paper on trichocephalia- 
sis, report four cases, including two fatal cases, in which Tri- 
churis seemed to play a rather important part. The blood 
pictures were particularly interesting, showing low erythrocyte 
counts and hemoglobin percentages of 20 to 36. Eosinophilia 
was incompletely reported. In one case that went to autopsy, 
numerous Trichuris were found in the small intestine—mainly 
the ileum—and two hundred were found in the large intestine. 
In another case death was caused by an embolism of the left 
coronary artery caused by a Trichuris, the posterior third of 
which remained free in the aorta. 
Musgrave and Clegg express doubts as to the commensal 
nature of Trichuris and suspect it to be pathogenic. Crowell 
and Hammack,(11) however, in their autopsy studies, report 
their failure to find tangible evidence of the pathological effects 
of Trichuris. 
Ascaris lumbricoides.—As has been stated this parasite oc- 
curred in 56 per cent of our cases. Of these, twenty-four cases 
were found in boys, and thirty-two in girls. Garcia, in his 
Cebu series, found 42.85 per cent of the ninety-eight children 
he examined infected with Ascaris. Willets found that in 
Cagayan Valley the Ascaris infections in children ranged from 
15 per cent in children under 1 year, up to 69.9 per cent be- 
tween the ages of 10 and 14 years. Garrison’s series of Bilibid 
Prison adults yielded only 26 per cent infections, but the group 
was composed of persons coming from many widely separated 
