Universidad Peruana Cayetano Heredia

Strongyloides stercoralis Infection at Different Altitudes of the Cusco Region in Peru

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dc.contributor.author Morales Fernández, María Luisa
dc.contributor.author Lopez, Martha
dc.contributor.author Ly, Priscilla
dc.contributor.author Anjum, Seher
dc.contributor.author Fernandez-Baca, Martha Vanessa
dc.contributor.author Valdivia-Rodriguez, Angela Maria
dc.contributor.author Mamani-Licona, Frecia Maribel
dc.contributor.author Baca-Turpo, Benicia
dc.contributor.author Farfan-Gonzales, Nedhy
dc.contributor.author Chaman-Illanes, Yeshica
dc.contributor.author Cabada, Miguel Mauricio
dc.date.accessioned 2019-08-08T15:23:44Z
dc.date.available 2019-08-08T15:23:44Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/20.500.12866/7121
dc.description.abstract Strongyloides stercoralis affects 30-100 million people worldwide. The burden is underestimated because of the paucity of studies, limited geographical areas surveyed, and poor quality of diagnostic tests. This study aimed at determining the epidemiology of strongyloidiasis using sensitive microscopy testing in rural populations living at different altitudes in Cusco, Peru. Data were collected from subjects aged > 3 years living in Quellouno (elevation 2,600 ft) and Limatambo (elevation 8,379 ft) districts. Subjects provided one fresh stool sample and answer a standardized questionnaire. Fresh stool was tested on site using the Baermann's test and agar plate culture. Formalin-preserved stool was tested by rapid sedimentation. Eighty percent (585/715) of eligible subjects consented to participate; after excluding subjects with missing data, 65% (462/715) were included. Fifty-five percentage were female; the median age was 33 years (interquartile range 13-52), and 72% had government health insurance. Half had intestinal parasites, and Strongyloides was the most common (24.5%) followed by Giardia (15.5%), Blastocystis (14.9%), and hookworm (11.5%). The agar plate culture detected more cases of Strongyloides than Baermann's or sedimentation tests. Strongyloides infection was more common at low altitude (26.4%) than at high altitude (18.6%), but the difference was not statistically significant (P = 0.08). Older age, walking barefoot, bathing in rivers/streams, and using municipal sewage were associated with strongyloidiasis. Strongyloides was the most prevalent parasite in the areas studied and was associated with demographic, socioeconomic, and sanitary factors. en_US
dc.language.iso eng
dc.publisher American Society of Tropical Medicine and Hygiene
dc.relation.ispartofseries American Journal of Tropical Medicine and Hygiene (ASTMH Journal)
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject adolescent en_US
dc.subject adult en_US
dc.subject altitude en_US
dc.subject Article en_US
dc.subject Blastocystis en_US
dc.subject disease association en_US
dc.subject feces analysis en_US
dc.subject female en_US
dc.subject formaldehyde en_US
dc.subject Giardia en_US
dc.subject health insurance en_US
dc.subject hookworm en_US
dc.subject human en_US
dc.subject major clinical study en_US
dc.subject male en_US
dc.subject nonhuman en_US
dc.subject parasite examination en_US
dc.subject Peru en_US
dc.subject rural population en_US
dc.subject sedimentation en_US
dc.subject sewage en_US
dc.subject stream (river) en_US
dc.subject Strongyloides en_US
dc.subject strongyloidiasis en_US
dc.subject walking en_US
dc.title Strongyloides stercoralis Infection at Different Altitudes of the Cusco Region in Peru en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.4269/ajtmh.18-0568
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.06
dc.relation.issn 1476-1645


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