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Title: Genetic differentiation of Strongyloides stercoralis from two different climate zones revealed by 18S ribosomal DNA sequence comparison
Authors: Wallop Pakdee
Urusa Thaenkham
Paron Dekumyoy
Surapol Sa-Nguankiat
Wanna Maipanich
Somchit Pubampen
Mahidol University
Keywords: Medicine
Issue Date: 1-Nov-2012
Citation: Southeast Asian Journal of Tropical Medicine and Public Health. Vol.43, No.6 (2012), 1333-1338
Abstract: Over 70 countries in tropical and subtropical zones are endemic areas for Strongyloides stercoralis, with a higher prevalence of the parasite often occurring in tropical regions compared to subtropical ones. In order to explore genetic variations of S. stercoralis form different climate zones, 18S ribosomal DNA of parasite specimens obtained from Thailand were sequenced and compared with those from Japan. The maximum likelihood indicates that S. stercoralis populations from these two different climate zones have genetically diverged. The genetic relationship between S. stercoralis populations is not related to the host species, but rather to moisture and temperature. These factors may directly drive genetic differentiation among isolated populations of S. stercoralis.
ISSN: 01251562
Appears in Collections:Scopus 2011-2015

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