Soil-transmitted Helminth Infections in Schoolchildren of Laguna de Perlas (Nicaragua).
Soil-transmitted helminth (STH) prevalence, intensity, polyparasitism and co-infections in 425 children from 3 schools of Laguna de Perlas (Nicaragua) were investigated. Single stool samples were analysed by the formalin-ether method and the Kato-Katz. A total of 402 (94.6%) children were infected. Trichuris trichiura 308 (72.4%), Ascaris lumbricoides 115 (27.1%) and Hookworms 54 (12.7%) were the most prevalent STHs. Polyparasitism (322; 75.8%) with two species was most prevalent (109; 25.6%). T. trichiura with A. lumbricoides (19.3%) and T. trichiura with Hookworm (6.8%) were the most common combinations. Positive associations were observed between T. trichiura and A. lumbricoides and T. trichiura and Hookworm (p = 0.0001). Highest Hookworm intensities appeared when three STH co-infections occurred. Moderate- heavy STH intensities appear in up to 42.1% in trichuriasis, 57.5% in ascariasis and 11.1% in Hookworm infections. Integrated control interventions covering children need to be implemented mainly in a rural environment.
Facultad de Farmacia, Departamento de Parasitología, Universidad de Valencia, Av. Vicent Andrés Estellés s/n, Burjassot-Valencia 46100, Spain.
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Muñoz-Antoli
Departamento Bionálisis Clínico, Instituto Politécnico de la Salud (IPS-Polisal), Universidad Nacional Autónoma de Nicaragua, Managua, Nicaragua.
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Pavón
Facultad de Farmacia, Departamento de Parasitología, Universidad de Valencia, Av. Vicent Andrés Estellés s/n, Burjassot-Valencia 46100, Spain.
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Pérez
Facultad de Farmacia, Departamento de Parasitología, Universidad de Valencia, Av. Vicent Andrés Estellés s/n, Burjassot-Valencia 46100, Spain.
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Toledo
Facultad de Farmacia, Departamento de Parasitología, Universidad de Valencia, Av. Vicent Andrés Estellés s/n, Burjassot-Valencia 46100, Spain.
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Esteban
D000293:Adolescent; D000723:Ancylostomatoidea / Q000302:isolation & purification*; D000818:Animals; D001196:Ascariasis / Q000453:epidemiology / Q000469:parasitology; D017164:Ascaris lumbricoides / Q000302:isolation & purification*; D002648:Child; D060085:Coinfection / Q000453:epidemiology; D005243:Feces / Q000469:parasitology*; D005260:Female; D006373:Helminthiasis / Q000175:diagnosis / Q000453:epidemiology* / Q000469:parasitology; D006725:Hookworm Infections / Q000453:epidemiology / Q000469:parasitology; D006801:Humans; D009527:Nicaragua / Q000453:epidemiology; D015995:Prevalence; D012574:Schools; D012987:Soil / Q000469:parasitology*; D014257:Trichuriasis / Q000453:epidemiology / Q000469:parasitology; D014258:Trichuris / Q000302:isolation & purification*
D012987:Soil