RESUMO
This project studied the frequency and intensity of water contamination at the source, during transportation, and at home to determine the causes of contamination and its impact on the health of children aged 0 to 5 years. The methods used were construction of the infrastructure for three sources of potable water, administration of a questionnaire about socioeconomic status and sanitation behavior, anthropometric measurement of children, and analysis of water and feces. The contamination, first thought to be only a function of rainfall, turned out to be a very complex phenomenon. Water in homes was contaminated (43.4%) with more than 1100 total coliforms/100 ml due to the use of unclean utensils to transport and store water. This socioeconomic and cultural problem should be addressed with health education about sanitation. The latrines (found in 43.8% of families) presented a double-edged problem. The extremely high population density reduced the surface area of land per family, which resulted in a severe nutritional deficit (15% of the children) affecting mainly young children, rendering them more susceptible to diarrhea (three episodes/child/year).
Assuntos
Diarreia/epidemiologia , Saneamento/normas , Microbiologia da Água , Abastecimento de Água/normas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antropometria , Criança , Pré-Escolar , Estudos de Coortes , Diarreia/prevenção & controle , Fezes/microbiologia , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Estado Nutricional , População Rural , Ruanda/epidemiologia , Classe Social , Inquéritos e Questionários , Purificação da ÁguaRESUMO
In December 1997, 170 hemorrhagic fever-associated deaths were reported in Garissa District, Kenya. Laboratory testing identified evidence of acute Rift Valley fever virus (RVFV). Of the 171 persons enrolled in a cross-sectional study, 31(18%) were anti-RVFV immunoglobulin (Ig) M positive. An age-adjusted IgM antibody prevalence of 14% was estimated for the district. We estimate approximately 27,500 infections occurred in Garissa District, making this the largest recorded outbreak of RVFV in East Africa. In multivariable analysis, contact with sheep body fluids and sheltering livestock in one s home were significantly associated with infection. Direct contact with animals, particularly contact with sheep body fluids, was the most important modifiable risk factor for RVFV infection. Public education during epizootics may reduce human illness and deaths associated with future outbreaks.