Publication: Subtype distribution of blastocystis in Thai-Myanmar border, Thailand
Issued Date
2015-01-01
Resource Type
ISSN
17380006
00234001
00234001
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2-s2.0-84924405906
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Mahidol University
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SCOPUS
Bibliographic Citation
Korean Journal of Parasitology. Vol.53, No.1 (2015), 13-19
Suggested Citation
Supaluk Popruk, Ruenruetai Udonsom, Khuanchai Koompapong, Aongart Mahittikorn, Teera Kusolsuk, Jiraporn Ruangsittichai, Attakorn Palasuwan Subtype distribution of blastocystis in Thai-Myanmar border, Thailand. Korean Journal of Parasitology. Vol.53, No.1 (2015), 13-19. doi:10.3347/kjp.2015.53.1.13 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/36135
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Title
Subtype distribution of blastocystis in Thai-Myanmar border, Thailand
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Abstract
© 2015, Korean Society for Parasitology and Tropical Medicine. Blastocystis sp. is a common zoonotic intestinal protozoa which has been classified into 17 subtypes (STs). A cross-sectional study was conducted to determine the prevalence and subtype distribution of Blastocystis in villagers living on the Thai-Myanmar border, where the risk of parasitic infection is high. A total of 207 stool samples were collected and DNA was extracted. PCR and sequencing using primers targeting small-subunit ribosomal RNA (SSU rRNA) gene were performed. The prevalence of Blastocystis infection was 37.2% (77/207). ST3 (19.8%; 41/207) was the predominant subtype, followed by ST1 (11.6%; 24/207), ST2 (5.3%; 11/207), and ST4 (0.5%; 1/207). A phylogenetic tree was reconstructed using the maximum likelihood (ML) method based on the Hasegawa-Kishino-Yano + G + I model. The percentage of bootstrapped trees in which the associated taxa clustered together was relatively high. Some sequences of Blastocystis positive samples (TK18, 39, 46, 71, and 90) were closely related to animals (pig and cattle) indicating zoonotic risks. Therefore, proper health education in parasitic prevention for the villagers should be promoted to improve their personal hygiene. Further longitudinal studies are required to monitor the prevalence of parasitic infections after providing health education and to investigate Blastocystis ST in animals living in these villages.