

@article {10973,
	title = {Reinfection with {Ascaris} lumbricoides after chemotherapy: a comparative study in three villages with varying sanitation},
	journal = {Transactions of the Royal Society of Tropical Medicine and Hygiene},
	volume = {82},
	number = {3},
	year = {1988},
	month = {may},
	pages = {460{\textendash}464},
	abstract = {This study examined the effect of the 2 major means of control of Ascaris lumbricoides{\textemdash}chemotherapy and sanitation. About 200 pre-school Caribbean children living in 3 villages with varying sanitation were studied by quantitative stool examination for the presence of the eggs of helminths. Children with Ascaris eggs were treated with piperazine. Over a 2-year period this procedure was repeated after every 6 months of natural re-infection. Results showed that (i) the rate of reinfection was on average 20\% higher than the rate of new infection; (ii) there was a highly significant correlation between the result of children{\textquoteright}s initial stool examination and that 6 months later; (iii) children with high Ascaris egg counts also frequently had high Trichuris egg counts; (iv) during the 6-month intervals, 36\% of the infected children were not reinfected after treatment; the difference in reinfection rates between villages with and without sanitation was 48\%. Regression analysis indicated that, after several socio-economic variables were controlled, only sanitation and crowding remained significantly associated with reinfection. The implications of these findings in formulating control strategies are discussed.},
	issn = {0035-9203},
	doi = {10.1016/0035-9203(88)90162-9},
	url = {http://www.sciencedirect.com/science/article/pii/0035920388901629},
	author = {Henry, Fitzroy J.}
}
