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KMID : 1143420200130221552
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Public Health Weekly Report
2020 Volume.13 No. 22 p.1552 ~ p.1560
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Results of the Tuberculosis Epidemiological Investigation Congregated Settings, 2019
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Han Sun-Mi
Park Yong-Joon
Park Yong-Joon
Kim Young-Man
Park Shin-Young
Kim Ji-Eun
Park Young-Joon
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Abstract
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Tuberculosis (TB) is an airborne infectious disease caused by Mycobaterium tuberculosis, a species of pathogenic bacteria. Individuals with TB often infect those they come into close contact with. It is generally accepted that 5-10% of the individuals with latent tuberculosis infection (LTBI), a state of persistent immune response to stimulation by Mycobacterium tuberculosis antigens without evidence of clinically manifested active TB, develop active TB in their lifetime, with 50% developing active TB within two years after infection. Therefore the management of recent contacts of patients with infectious TB is important for the overall management of TB. The World Health Organization (WHO) recommends that tests and treatments for LTBI be prioritized for contacts of TB patients.
The aim of this study was to report the results of the Korea Centers for Disease Control and Prevention (KCDC) 2019 TB
epidemiological investigation in congregated settings. Since 2013, according to the Korean National Tuberculosis Control
Program, contact investigations of infectious TB were enhanced for congregated settings such as educational facilities,
clinics/hospitals, military/police units, social welfare facilities, correctional facilities and workplaces. In 2019, a total of 4,526 contact investigations in congregated settings were conducted by the KCDC. A total of 130,843 contacts were identified, and 154 TB cases were found. Of the 67,259 contacts who were tested for LTBI, 12,873 individuals were identified as having LTBI. This study concluded that to enable early detection and prevention of TB, the KCDC must further strengthen contact investigation.
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KEYWORD
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Tuberculosis, Tuberculosis patients, Latent tuberculosis infection, Contact investigations, Epidemiology
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