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Predisposition of individuals and families in Mexico to heavy infection with Ascaris lumbricoides and Trichuris trichiura.

Abstract：

:Stool specimens from 90% of the population of 2 marginal communities in Coatzacoalcos, Mexico, were examined by the Kato-Katz technique for the estimation of eggs per gram of faeces (epg). Average epg values for Ascaris lumbricoides and Trichuris trichiura were calculated for each family in the community, based on the arithmetic mean epg of family members for each parasite. 39 families were classified as either lightly or heavily infected with A. lumbricoides and infected members were treated with mebendazole. A. lumbricoides expelled following treatment were collected from the children 2-10 years of age, and reinfection was monitored monthly for 6 months. At the end of the reinfection interval, a final stool specimen was collected from all family members and those infected were treated. Again, A. lumbricoides expelled by the children 2-10 years of age were collected. There was a significant correlation between the number of A. lumbricoides expelled by the children at the first and second treatments as well as in epg values before the first and second treatments for both A. lumbricoides and T. trichiura in children (2-10 years) and adults (greater than 19 years). At the family level, there were significant correlations between the values of family mean epg before each treatment for both A. lumbricoides and T. trichiura.

journal_name

Trans R Soc Trop Med Hyg

journal_title

Transactions of the Royal Society of Tropical Medicine and Hygiene

authors

Forrester JE,Scott ME,Bundy DA,Golden MH

doi

10.1016/0035-9203(90)90284-l

subject

Has Abstract

pub_date

1990-03-01 00:00:00

pages

272-6

issue

2

eissn

0035-9203

issn

1878-3503

journal_volume

84

pub_type

杂志文章

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