[논문]충남지역 다중이용시설의 환경수계에서 분리한 레지오넬라균의 특성 분석

천영희; 이현아; 남해성; 최지혜; 이다연; 고영은; 박종진; 이미영; 박준혁

doi:10.5668/jehs.2021.47.5.472

충남지역 다중이용시설의 환경수계에서 분리한 레지오넬라균의 특성 분석
Characterization of Legionella Isolated from the Water System at Public Facilities in Chungcheongnam-do Province 원문보기

韓國環境保健學會誌 = Journal of environmental health sciences, v.47 no.5, 2021년, pp.472 - 478

천영희 (충남대학교 의과대학 예방의학교실) , 이현아 (충남대학교 의과대학 예방의학교실) , 남해성 (충남대학교 의과대학 예방의학교실) , 최지혜 (충청남도보건환경연구원) , 이다연 (충청남도보건환경연구원) , 고영은 (충청남도보건환경연구원) , 박종진 (충청남도보건환경연구원) , 이미영 (충청남도보건환경연구원) , 박준혁 (충청남도보건환경연구원)

Abstract ▼ AI-Helper

Background: The Legionella case detection and notification rate have increased in public artificial water environments where people visit, including large buildings, public baths, and hospitals. Objectives: In this study, the distribution of Legionella and its epidemiologic characteristics were analyzed in the water systems of public facilities in Chungcheongnam-do Province in South Korea. Methods: Culture and PCR analysis were performed on 2,991 environmental water system samples collected from 2017 to 2019, and associations with year, facilities, seasons, and temperature of water system were statistically analyzed by using R-Studio for Windows. Descriptive data was compared using chi-square tests and independent t-tests. Results: The detection rate of Legionella increased from 3.1% in 2017 to 10.3% in 2019, appearing most frequently in the order of public baths, large-scale buildings, hospitals, and apartments. It was detected mainly in summer from June to August, over 1.0×103 CFU/L on average in 133 cases (66.5%). Lots of germs were detected in bathtub water, cooling tower water, and warm water (p<0.001), and it was detected at higher rates in the cities where multipurpose facilities were concentrated than in rural areas (p=0.018). Conclusions: This study suggests that continuous monitoring and control are required for Legionella in the water system environment of high risk facilities. Moreover, these results will be helpful to prepare efficient management plans to prevent the Legionellosis that occurs in Chungcheongnam-do Province.

주제어

표/그림 (10)

표 Table 1. Primer sets for PCR of Legionella diagnosis used in this study
그림 Fig. 1. Number of Legionella isolates, Chungnam (2017~2019)
표 Table 2. Number of positive samples for Legionella isolated water system from public facilities in Chungnam
표 Table 3. Case counts and positive rates of Legionella by year with level of colonization, Chungnam
표 Table 4. Case counts and positive rates of Legionella species by season with level of colonization, Chungnam
표 Table 5. Distribution of Legionella isolated by facilities and water sources, Chungnam
표 Table 6. Distribution of Legionella isolated by water sources, Chungnam
표 Table 7. Number of colonized Legionella species with water temperatures, Chungnam
그림 Fig. 2. Detection rate of Legionella isolated from water system of public facilities by region, Chungnam (2017~2019) (%)
표 Table 8. Positive sample number for Legionella by cities and counties, Chungnam

참고문헌 (22)

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