Volume 16, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Fecal blood loss measured with Cr was estimated in nine children with various degrees of infection with . They were found to lose about 0.005 ml of blood per worm per day, about 6 to 10 times less than from and 30 to 50 times less than from . Patients lose about 0.8 ml of blood per million eggs per day and about 0.25 ml per thousand eggs per gram of feces. The last parameter is only approximate because of the variability in the consistency of the feces.

It was estimated that infections of over 800 parasites—producing more than 5 million eggs per day—induce anemia in children.


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