Skip Navigation
Skip to contents

Epidemiol Health : Epidemiology and Health

OPEN ACCESS
SEARCH
Search

Author index

Page Path
HOME > Browse articles > Author index
Search
Cheoll Jung 2 Articles
A Study on the Epidemiologic Characteristics of Scrub Typhus in Gyeongsangbuk-do, 1999-2001.
Young Sun Min, Hyun Sul Lim, Kwan Lee, Cheoll Jung, Hae Kwan Cheong
Korean J Epidemiol. 2005;27(2):70-79.
  • 65,535 View
  • 24 Download
AbstractAbstract PDF
Abstract
ONJECTIVE: This study was carried out to investigate the epidemiologic characteristics and magnitudes of scrub typhus (tsutsugamushi disease) in Gyeongsangbuk-do, Korea.
METHODS
Resources of data collected were epidemiologic surveillance report to public health centers on each disease occurrence. The authors reviewed 344 epidemiologic surveillance reports for cases of scrub typhus developed in Gyeongsangbuk-do, Korea from Jan 1, 1999 to Dec 31, 2001.
RESULTS
The scrub typhus cases were 376 during three year period, and the incidence was significantly higher in the county area than in the city area. Incidence of scrub typhus was increasing each year. In 344 epidemiologic surveillance reports, the job of the cases was farmer (67.2%), housewife (4.7%), clerk (3.5%). Two hundred ninety eight cases (86.6%) have experienced outdoor activities before development of the scrub typhus. The outdoor places of exposure were dry field (64.8%), rice field (51.7%), hill (12.8), and grass field (9.7%). The symptoms reported were fever (93.3%), headache (83.7%), chill (69.5%), and rash (54.4%).
CONCLUSIONS
Incidence of scrub typhus was increasing in Gyeongsangbuk-do, Korea, this phenomenon may be related to change of climate, the reporting rate of disease and outing activities. Good surveillance and adequate analysis of epidemiologic data is a essential for the prevention of the disease. With this result, high risk population was identified and effective intervention should be done to prevent the disease.
Summary
Korean summary
Key Message
Analysis of Transmission Mode of Confirmed Shigellosis in Gyeongju, Korea.
Cheoll Jung, Hyun Sul Lim, Gyoung Yim Ha, Hee Su Kim
Korean J Epidemiol. 2004;26(1):1-16.
  • 3,797 View
  • 9 Download
AbstractAbstract PDF
Abstract
PURPOSE
This study was carried out to investigate the sources of infection and modes of transmission of an 107 (54males, 53 females) confirmed shigellosis in Gyeongju from Sept. 24 to Oct. 24, 1998.
METHODS
We reviewed hospital records of all confirmed shigellosis. Thirty-two strains of Shigella sonnei isolated were analyzed in order to trace the source of infections by plasmid profile, antimicrobial drug resistance pattern, biotyping and pulsed-field gel electrophoresis (PFGE).
RESULTS
The first source of infection was estimated to be contaminated underground water and simple piped water caused by leakage from the cess pool. Antimicrobial drug resistance pattern showed that all strains were multi-resistant. All isolates had the same XbaI and SfiI PFGE patterns, indicating the epidemiological relationship of the outbreaks strains in this area. The major characteristics of diarrhea were watery (84.2%) in nature. The clinical symptoms among the diarrheal cases included abdominal pain (86.1%), fever (83.2%), headache (78.2%), chill (45.5%) and tenesmus (41.6%). Six cases were asymptomatic. From initial manifestation to admission were 6.2+/-1.6 (median 6) days, so it could be transmitted to others in this infective period. Duration of admission were 5.5 +/-2.4 (median 6) days. We can find familial mean secondary attack rate were 38.5%.
CONCLUSION
It's transmission to other areas were certified by contaminated water and contact with shigellosis, and unknown cases were estimated to be transmitted by contacts with inapparent infection. By plasmid profile and PFGE, the epidemiological relationship of the outbreaks strains in this area seemed to be the same micro-organisms.
Summary
Korean summary
Key Message

Epidemiol Health : Epidemiology and Health