23.6 Leach et a*.: Hookworm Infestation 495 



Ascaris were recovered. He received 10.4 cubic centimeters of carbon 

 tetrachloride. 



Prisoner 14764.— Aged 35 years. Laborer. Personal history and phys- 

 ical examination unimportant, except for a kyphosis. Blood examination 

 before treatment: 4,300,000 erythrocytes; 78 per cent haemoglobin; 4 per cent 

 eosinophiles. Blood examination 3 months, 11 days after treatment: 

 4,950,000 erythrocytes; 95 per cent haemoglobin; 22 per cent eosinophiles. 

 Weight remained stationary. On screening the stools after treatment 26 

 Ancylostoma, 24 Necator, and 43 Trichuris were recovered. He received 

 9.1 cubic centimeters of carbon tetrachloride. 



Prisoner 57S40. — Aged 45 years. Laborer. Personal history unimpor- 

 tant. Physical examination developed that there was prolonged expiration 

 over both sides posteriorly; impaired resonance of the right lower pos- 

 teriorly. Many fine crepitant rales at the right lower. Blood examination 

 before treatment: 3,500,000 erythrocytes; 87 per cent haemoglobin; 11 

 per cent eosinophiles. Blood examination 2 months, 16 days after treat- 

 ment: 4,150,000 erythrocytes; 90 per cent haemoglobin; eosinophiles not 

 counted. Weight advanced 2.9 kilograms. On screening the stools after 

 treatment no adult hookworms were recovered. The faeces, however, con- 

 tained numerous hookworm larvae which presumably had hatched from ova 

 present in the faeces before treatment, for no ova were found in his stool 

 2 months and 16 days after treatment. 2 He received 7.1 cubic centimeters 

 of carbon tetrachloride. 



At a second physical examination, two and one-half months 

 after treatment, this man's lungs were clear on percussion and 

 auscultation. 



Obviously, this man was very lightly infected with hookworm. 

 An accompanying infection with Trichuris likewise was very 

 light, for it was only detected on concentration of the faeces. It 

 seems unlikely, therefore, that his anaemia was the product of a 

 helminthiasis, and his general improvement in health would 

 seem to have been the result of the improvement in his mode 

 of life that took place when he entered prison. 



Prisoner 57342. — Aged 41 years. Laborer. Personal history and phys- 

 ical examination unimportant. He was, however, profoundly parasitized. 

 He harbored, in addition to hookworm, Ascaris, Trichuris, Entamoeba 

 histolytica, and E. colt. Blood examination before treatment: 4,850,000 

 erythrocytes; 58 per cent haemoglobin; 11 per cent eosinophiles. Blood 

 examination 2 months, 15 days after treatment: 5,550,000 erythrocytes; 

 95 per cent haemoglobin; 33 per cent eosinophiles. Weight advanced 1.8 

 kilograms. On screening the stools after treatment 6 Ancylostoma and 142 



On reexamination of the faeces of this man, two and one-half 

 months after treatment, he was found still to be infected with 



