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 Home > Available Issues |
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 Original Articles |
| Epidemiological Aspect of Vibrio cholerae Strains Recently Imported and Cholera Epidemic Outbreak Among Indigenous Korean Residents in 1995 |
| Ho Hoon Kim, Young Hak Shin, Yun Ho Kang, Cheon Kwon Ryu, Mi Sun Park, Dong Sool Kim, Jae Yon Yu, Cheong Hoon Chun, Bok Kwon Lee, Ki Deok Park, Dong Jin Kim, Tae Hwa Chung,
Jong Ku Lee, Ki Dong Park, Sang Soon Kim, Dong Mo Lee, Moon Shik Kim, Byung Ryun Cho |
| Laboratory of Enteric Bacteria, National Institute of Health, Korea.
Ministry of Health and Welfare. |
Vol.28 Num.6 (p473~479)
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Background : Imported Vibrio cholerae strains have increasingly been found since 1992 and the pattern of recent cholera epidemic outbreak in Korea showed a little difference from that of former epidemic outbreak.
Methods : We had collected suspected V. cholerae isolates from Quarantine Stations or Public Health Laboratories. which were identified as V. cholerae O1 or O139. Epidemiological analysis was made on the base of field surveys.
Results : During the period from 1986 through 1995, 138 V. cholerae strains were imported. Nearly 85.5% of the strains (118 strains) were imported within recent 4 years from 1992 to 1995. One hundred and twenty-eight strains were E1 Tor-Ogawa type V. cholerae O1. Of 138 strains, 71 strains were isolated from the airplane toilet swab and 67 strains from the passengers who entered into Korea after international travel. From 1993 to 1995, 101 strains were imported from the Southease Asian countries; including Thailand(65), Indonesia(17), Philippines(10), Hongkong(6) Singapore(2) and Vietnam(1).
During the cholera epidemic in 1995, 68 patients with V. cholerae O1(E1 Tor-Ogawa) were found. Onset of the index-case occurred on August 26th and the last on September 13th. Geographically it occurred in Incheon city(25), Chungcheongnam do(25), Kangwon do(6), Kyungsangbuck do(5), Kyunggi do(4), Daejeon city(2) and Pusan city(1). Of total 68 cases, 39 were male. Cases were found in all age groups, but it was more common in elderly groups. During the epidemic, E1 Tor-Ogawa type V. cholerae O1 strains were also isolated from the coastal sea water of Kanghwa kun where the epidemic outbreak occured.
Conclusions : In Korea, the imported V. cholerae O1 and V. cholerae O139 strains have increasingly been found without seasonal variation since 1992. Cholera epidemic outbreak in 1995, occurred simultaneously at many different local areas within a short period without mortality.
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Keywords : Vibrio cholerae O1, Vibrio cholerae O139, Cholera |
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