1.Small Round Structured Virus (SRSV) Outbreak Among Elementary School Students in Wonju Province.
Unyeong GO ; Young Hak SHIN ; Jung Sik YOO ; Youngmee JEE ; Ki Soon KIM ; Jae Deuk YOON
Korean Journal of Infectious Diseases 2001;33(3):210-213
No abstract available.
Gangwon-do*
;
Humans
2.Epidemiological Characteristics of Shigellosis in Jeju Island in 2003.
Sang Yop SHIN ; Unyeong Yu GO ; Jong Myon BAE
Infection and Chemotherapy 2005;37(4):208-219
BACKGROUND: Shigellosis is one of the most important contagious diseases in Korea. Especially, Jeju island has been known as the main and large outbreak area in Korea. The purpose of this study was to investigate the epidemiologic characteristics of shigellosis in Jeju island, 2003. METHODS: Patients with shigellosis, confirmed by culture in Jeju island in 2003, were included in this study. We retrospectively reviewed epidemiologic questionnaires, medical records, and official documents. We also collected data from direct interview with the patients with shigellosis. Epidemiological analysis was performed by 3 categorized events and ages. RESULTS: Ninety-nine patients were included in this study. S. sonnei was identified in all of the patients. Shigellosis mainly occurred in preschool-aged children. However, there was no statistical difference according to sex. Although there were asymptomatic cases (15.15%), the chief complaints were loose stool (69.7%) and abdominal pain (12.12%). Initial symptoms in symptomatic patients were abdominal pain (43.43%) and fever (31.31%). The median duration of isolation in the hospital was 7 days. CONCLUSION: Large and chronic epidemic outbreaks of shigellosis have occurred in Jeju island. Throughout this survey, we could show the epidemiological characteristics and the nature of shigellosis in Jeju island.
Abdominal Pain
;
Child
;
Disease Outbreaks
;
Dysentery, Bacillary*
;
Fever
;
Humans
;
Korea
;
Medical Records
;
Retrospective Studies
;
Surveys and Questionnaires
3.Epidemiological Characteristics of Shigellosis in Jeju Island in 2003.
Sang Yop SHIN ; Unyeong Yu GO ; Jong Myon BAE
Infection and Chemotherapy 2005;37(4):208-219
BACKGROUND: Shigellosis is one of the most important contagious diseases in Korea. Especially, Jeju island has been known as the main and large outbreak area in Korea. The purpose of this study was to investigate the epidemiologic characteristics of shigellosis in Jeju island, 2003. METHODS: Patients with shigellosis, confirmed by culture in Jeju island in 2003, were included in this study. We retrospectively reviewed epidemiologic questionnaires, medical records, and official documents. We also collected data from direct interview with the patients with shigellosis. Epidemiological analysis was performed by 3 categorized events and ages. RESULTS: Ninety-nine patients were included in this study. S. sonnei was identified in all of the patients. Shigellosis mainly occurred in preschool-aged children. However, there was no statistical difference according to sex. Although there were asymptomatic cases (15.15%), the chief complaints were loose stool (69.7%) and abdominal pain (12.12%). Initial symptoms in symptomatic patients were abdominal pain (43.43%) and fever (31.31%). The median duration of isolation in the hospital was 7 days. CONCLUSION: Large and chronic epidemic outbreaks of shigellosis have occurred in Jeju island. Throughout this survey, we could show the epidemiological characteristics and the nature of shigellosis in Jeju island.
Abdominal Pain
;
Child
;
Disease Outbreaks
;
Dysentery, Bacillary*
;
Fever
;
Humans
;
Korea
;
Medical Records
;
Retrospective Studies
;
Surveys and Questionnaires
4.Male to Female Heterosexual Transmission of HIV in Korea: Transmission Rate and Risk Factors.
Unyeong GO ; Mee Kyung KEE ; Byeong Sun CHOI ; Chun KANG ; Kyoung Mee DO ; Ju Hyun LEE ; Joo Shil LEE
Korean Journal of Preventive Medicine 1999;32(2):228-235
OBJECTIVES: Despite the importance of human immunodefi-ciency virus(HIV) transmission through heterosexual contact, the features of heterosexual transmission has not been well studied in Korea. So we conducted a cross sectional study to determine the transmission rates in married couples and assess risk factors for male to female heterosexual transmission of HIV. METHODS: 169 HIV-infected males and their female sex partners were recruited from 1985 to June 1998. We examined female sex partners HIV infection status and interviewed male index partners and their female sex partners about demographic characteristics and sexual practices. We analysed heterosexual transmission rate by epidemiologic characteristics, disease status and sexual practices. And we assessed risk factors for HIV infection by univariate and multivariate analysis. RESULTS: 30 female sex partners were infected at enrollment, yielding an transmission rate of 17.8%. Among couples who had used condoms consistently, none of the female sex partners was infected with HIV. In univariate analysis the significant risk factors were full blown AIDS status (OR=4.1, 95% CI: 1.49-11.43) and low CD4 T cell count of index partners at enrollment (OR=7.8, 95% CI: 2.19-27.80). In multivariate analysis HIV-1 RNA levels was significant risk factor when adjusted by CD4 T cell counts and mean sexual contacts per month (OR=19.2, 95% CI: 1.03-357.59) CONCLUSION: The risk of male to female heterosexual transmission increased with advanced stages of HIV infection in the index male partners.
Cell Count
;
Condoms
;
Family Characteristics
;
Female*
;
Heterosexuality*
;
HIV Infections
;
HIV*
;
HIV-1
;
Humans
;
Korea*
;
Male*
;
Multivariate Analysis
;
Risk Factors*
;
RNA
5.Sequence Analysis of Small Round Structured Viruses (SRSV) Isolated from a Diarrheal Patient in Wonju.
Youngmee JEE ; Ki Soon KIM ; Doo Sung CHEON ; Jeong Koo PARK ; Young Hwa KANG ; Yoon Suck CHUNG ; Unyeong GO ; Young Hack SHIN ; Jae Deuk YOON
Journal of the Korean Society of Virology 1999;29(4):247-259
No abstract available.
Gangwon-do*
;
Humans
;
Norovirus*
;
Sequence Analysis*
6.Gender differences in hepatitis A seropositivity rates according to the Republic of Korea’s vaccination policy
Hyunjin SON ; Sunhyun AHN ; Wonseo PARK ; Gayoung CHUN ; Unyeong GO ; Sang Gon LEE ; Eun Hee LEE
Osong Public Health and Research Perspectives 2024;15(2):168-173
Objectives:
This study aimed to investigate differences in the anti-hepatitis A (HAV) antibody seropositivity rate by age and gender.
Methods:
We collected information on anti-HAV immunoglobulin G and immunoglobulin M status from samples submitted for HAV antibody testing in 2012–2022. A total of 1,333,615 cases were included in the analysis.
Results:
By age, the seropositivity rate was represented by a U-shaped curve, such that the rate was low for the group aged 20 to 39 years and higher in those who were younger or older. Over time, the curve shifted rightward, and the seropositivity rate declined gradually in the group aged 35 to 39 years and older. A gender-based difference in antibody seropositivity rate was especially noticeable in the group aged 20 to 29 years. This difference between genders widened in the participants’ early 20s—when men in the Republic of Korea enlist in the military—and the divergence continued subsequently for older individuals.
Conclusion
These results indicate a higher risk of severe infection among older individuals and a gender-based difference in seroprevalence. Therefore, it is necessary to implement policies to promote vaccination in adults.