Fig 1.
Flow diagram of the participants and size of surveillance samples enrolled along the study.
*In Lapacho Alto community 9 months went by between the first and the second intervention and 14 months between second and third intervention. ∞In Kilometro 6 the period between first and second intervention was 9 months and between second and third intervention was 20 months.
Table 1.
Description of the baseline STH prevalence and coverage of the first Preventive Chemotherapy (PC) campaign by community.
Table 2.
Baseline characteristics of the study population.
Table 3.
Comparison of baseline measurements between subjects of the surveillance group infected and uninfected with hookworm and S. stercoralis (n = 397).
Fig 2.
Adjusted ODDS Ratios and 95% Confidence Intervals of the associations of hookworm infection and S. stercoralis infection with a) anemia; b) eosinophilia, and c) stunting.
Fig 3.
Correlation between hookworm´s infection intensity and hemoglobin level.
Table 4.
Comparison of prevalence before and after PC in Lapacho Alto and Kilometro 6 communities.
Fig 4.
Comparison of relative IgG titers against S. stercoralis, between baseline and first and second follow-up*.
* Relative IgG titers (measured IgG units/selected cutoff) reported.
Fig 5.
Hematological indicators along the study in Lapacho Alto and Kilometro 6 communities; A) evolution of hemoglobin level after first and second deworming and B) changes in prevalence of anemia by age and gender.
Fig 6.
Comparison of mean height for age z-score (HAZ) between baseline and follow up by age group (A) pre-school age children (PSAC and (B) school age children.