| population biology of hookworms in children in rural west bengal. ii. acquisition and loss of hookworms. | from changes in hookworm egg counts in feces of children in gangetic west bengal we estimate that, on the average, each child lost about 11.1 female hookworms during the 1969 post-monsoon dry period and gained about 10.3 females during the subsequent premonsoon and monsoon seasons, resulting in a net loss of worms over the 22-month study period. however, the mean fecal egg count for each 1-year age group of children from 3-11 years suggests an average net gain of 2.7 female worms/year. from seas ... | 1978 | 727321 |
| population biology of hookworms in children in rural west bengal. i. general parasitological observations. | hookworm infection was studied over a 22-month period in 31-49% of a population of 1,803 1- to 10-year-old children in a rural area near calcutta where both necator americanus and ancylostoma duodenale were prevalent. half of the children were infected before age 5 and 90% were infected by age 9, when the mean egg count reached 2,000 eggs/g of feces. infection was significantly heavier and more prevalent among males than among females, and greater among muslims than among hindus. these differenc ... | 1978 | 727320 |