High Cryptosporidium prevalences in healthy Aymara children from the Northern Bolivian Altiplano

Jose Guillermo Esteban, Carlos Aguirre, Angela Flores, Wilma Strauss Zegada, René Anglés Rivero, Santiago Mas-Coma

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The prevalence of Cryptosporidium infection was determined in four Aymara communities in the Bolivian Altiplano, between the city of La Paz and Lake Titicaca, at an altitude of 3,800-4,200 meters. Single stool specimens were randomly collected from 377 5-19-year-old students, all apparently asymptomatic. The total prevalence (31.6%) is possibly the highest reported among healthy humans (a maximum of 9.8% and 2.0% in coprologic surveys in underdeveloped and developed countries, respectively) and one of the highest even in symptomatic subjects. No significant age and sex differences were observed. Such an infection prevalence is probably related to the poor sanitation conditions, contaminated water supplies, overcrowding, and close contact with domestic animals. Continuous exposure to the parasite could be associated with protection against parasite-related symptoms in the children examined.

Original languageEnglish
Pages (from-to)50-55
Number of pages6
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume58
Issue number1
DOIs
StatePublished - 1998
Externally publishedYes

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