Cryptosporidium parvum in Korea: Prevalence in Individuals Residing in Three Major River Valleys and Genetic Chracteristics of the Isolates

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概要

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• Cryptosporidiosis is a diarrheal illness caused by apicomplexa parasite Cryptosporidium spp. In this study, to examine the overall infection status of Cryptosporidium spp. in individuals residing in southern parts of Korea, eight counties around Yeongsan, Seomjin and Nakdong River valleys was surveyed. The investigation was carried out from April to October 2005. A total of 9,498 stool samples were collected from individuals. Stool samples were analyzed for modified acid-fast stains, and DNA fragment extracted from positive samples was identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) for 18S rRNA polymorphic region. Oocysts of Cryptosporidium spp. were detected in 239 specimens (2.5%) by a modified acid-fast stain. Infection rate was not significantly different between male (2.2%) and female (2.8%) individuals examined (P>0.05). In the infection rate by age, totally 1-9 (4.8%) and 80< (3.7%) age group were shown to the highest, and there was shown to significant differences (P<0.05). Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of 18S rRNA gene from 51 isolates showed that all the isolates were identified as C. parvum. Our data collectively suggested that C. parvum infection is prevalent in the studied areas of Korea and more comprehensive nation-wide epidemiological studies are needed to elucidate the infection status of Cryptosporidium infection in Korea.

• 社団法人　日本獣医学会の論文

著者

• Cheun Hyeng-il

  Division Of Malaria & Parasitic Diseases National Institute Of Health

• CHO Shin-hyeong

  Division of Malaria & Parasitic Diseases, National Institute of Health

• Lim Yi-Young

  Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease

• LEE Byung-Chul

  Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease

• KIM Jung-Yeon

  Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease

• JU Jung-Won

  Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease

• NA Byoung-Kuk

  Department of Parasitology and Institute of Health Sciences, College of Medicine, Gyeongsang Nationa

• KIMATA Isao

  Department of Medical Zoology, Graduate School of Medicine, Osaka City University

• YU Jae-Ran

  Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease

• KIM Tong-Soo

  Department of Parasitology and Inha Research Institute for Medical Sciences, College of Medicine, In

• Kimata Isao

  Department Of Medical Zoology

関連論文

• 韓国の3郡における健康なヒトから分離したCryptosporidiumの遺伝子型解析(寄生虫病学)
• Cryptosporidium parvum in Korea: Prevalence in Individuals Residing in Three Major River Valleys and Genetic Chracteristics of the Isolates
• Molecular Evidence of Enterocytozoon bieneusi in Japan(Parasitology)
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