| a retrospective analysis of prevalence of gastrointestinal parasites among school children in the palajunoj valley of guatemala. | this study retrospectively analyzed demographic factors that may affect the prevalence of intestinal parasites among guatemalan school children. the findings of the study showed that young age, wet season, female gender, and severe malnutrition all correlated positively with increased rates of infection. clinical visits were performed on 10,586 school children aged 5-15 years over a four-year period (2004-2007) in the palajunoj valley of guatemala, during which 5,705 viable stool samples were sc ... | 2009 | 19248646 |
| the effect on fetal growth of protozoan and helminthic infection during pregnancy. | this is a prospective study of 14,914 pregnant women conducted in guatemala city, guatemala. stool samples were obtained from the studied patients before the first prenatal visit (mean gestational age 21.6 +/- 8.4 weeks) for the diagnosis of parasitic infections during pregnancy. forty-four percent had at least one parasite detected, and 24% were infected with helminths. ascaris lumbricoides was the most prevalent (14.5%). infected mothers were less educated, had less adequate water and sanitary ... | 1989 | 2586958 |