Prevalência de pediculose em crianças de escola rural em Yucatan, Mexico

We conducted an analytical cross-sectional survey to estimate the prevalence of and factors associated with active head lice infestation. In total 140 children, aged 6 to 16-years, from a public school in rural Yucatan, Mexico, were examined by wet-combing. A structured questionnaire was used to collect information on individuals and the conditions in the surrounding environment. Head lice infestation was found in 19 out of the 140 children tested (13.6%) and this was associated with both lower income (OR 9.9, 95% CI 2.15-45.79, p = 0.003) and a higher frequency of hair washing (OR 8, 95% CI 1.58-50, p = 0.012). Intersectoral control programs that take into account the socioeconomic differences of children should be implemented.Foi conduzido um estudo numa escola publica de área rural em Yucatan, Mexico com o objetivo de estimar a prevalência de pediculose e fatores de risco associados. Das 140 crianças incluídas 19 (13.6%) apresentaram pediculose. A infestação de piolho foi associada com baixa renda (OR 9.9, 95% CI 2.15-45.79, p = 0.003) e maior frequência de lavagem de cabelos (OR 8, 95% CI 1.58-50, p = 0.012). Programas intersetoriais de controle da pediculose que levam em conta as características socioeconômicas das crianças deveriam ser executados

Shedding of Lawsonia intracellularis by fattening pigs in two production systems in Yucatan, Mexico

Se realizó un estudio longitudinal para determinar la frecuencia e incidencia de Lawsonia intracellularis en cerdos de engorde en una granja de múltiples sitios y otra de un sitio en Yucatán, México. Se utilizaron 59 y 58 lechones negativos a L. intracellularis de las granjas de múltiples sitios y un sitio, respectivamente, los cuales se monitorearon cada 14 días de la semana, 1 a la 21 de edad. La bacteria en heces se detectó utilizando la prueba de la reacción en cadena de la polimerasa. Todos los cerdos de ambas granjas eliminaron L. intracellularis al menos una vez hasta la semana 11 de edad, encontrándose el mayor número de animales positivos a la semana 7. La incidencia acumulada fue del 100% en ambas granjas y la tasa de incidencia en las granjas de un sitio y múltiples sitios fueron 0,31 y 0,26 cerdos por cada 14 días a riesgo, respectivamente. Los resultados de este estudio proporcionan información para la implementación de esquemas de prevención control y erradicación de L. [email protected] longitudinal study was carried out to determine the frequency and incidence of Lawsonia intracellularis in fattening pigs in a one-site farm and a multi-site farm in Yucatan, Mexico. Fiftynine and 58 pigs negative to L. intracellularis from the one-site farm and the multi-site farm were used, respectively. Pigs were monitored every 14 days from weeks, one to 21 of age. The bacterium in faeces was detected by PCR test. All pigs from both farms shed L. intracellularis at least once by week 11 of age; the greatest number of positive pigs were detected at week 7. The cumulative incidence was 100% in both farms and the incidence density rates in the one-site farm and the multisite farm were 0.31 and 0.26 pigs per each 14-days, respectively. The result of this study gives some information for the implementation of schemes of prevention, control and eradication of L. intracellularis

Prevalence of pediculosis capitis in children from a rural school in Yucatan, Mexico

We conducted an analytical cross-sectional survey to estimate the prevalence of and factors associated with active head lice infestation. In total 140 children, aged 6 to 16-years, from a public school in rural Yucatan, Mexico, were examined by wet-combing. A structured questionnaire was used to collect information on individuals and the conditions in the surrounding environment. Head lice infestation was found in 19 out of the 140 children tested (13.6%) and this was associated with both lower income (OR 9.9, 95% CI 2.15-45.79, p = 0.003) and a higher frequency of hair washing (OR 8, 95% CI 1.58-50, p = 0.012). Intersectoral control programs that take into account the socioeconomic differences of children should be implemented