Earticle

초록

영어

We aimed to investigate the proportions of MTB- and NTM-positive tests and the distribution patterns of species isolated by contracted testing agencies in South Korea. Respiratory specimens submitted to contracted testing agencies in South Korea for AFB culture from January 2014 to December 2021 were included (533,713 specimens in total). Trends based on MTB and NTM detection, patient sex and age, culture medium type, and testing year were analyzed. MTB and NTM positive detection increased in the patients. The average ages of MTB- and NTM-positive patients increased in those aged ≥61 years. For solid culture, the MTB detection rate decreased from 5.9% in 2014 to 3.3% in 2018 and increased to 4.7% in 2021; the NTM detection rate increased from 2.1% in 2014 to 3.4% in 2018 and 3.7% in 2021. For liquid culture, the MTB detection rate decreased from 8.3% in 2014 to 5.5% in 2018 and increased to 6.0% in 2021; the NTM detection rate increased from 3.5% in 2014 to 5.5% in 2018 and decreased to 5.3% in 2021. An isolation ratio reversal between MTB and NTM was observed in 2018. In this study, we provide information on mycobacterial isolation rates and species distributions using AFB culture test results from Korea’s referral laboratories. Increased MTB- and NTM-isolation rates were observed in individuals aged ≥60 years, indicating the need for regular testing and focused management for them. Expanding liquid culture applications, which show higher positivity rates than solid culture methods, is necessary.

목차

Abstract
1. INTRODUCTION
2. EXPERIMENTS
3. RESULTS
3.1 Distribution of NTM and MTB According to Age and Sex
3.2 MTB and NTM Isolation Rates According to the Culture Medium
3.3 Distribution of NTM and MTB According to The Isolation Year
4. DISCUSSION
5. CONCLUSION
ACKNOWLEDGEMENT
REFERENCES

키워드

저자

• Tae Soung Kim [ Graduate Student, Department of Clinical Pathology, Graduate School of Dankook University, Cheonan, Korea ] Co-first authors
• Ga Yeon Kim [ Professor, Department of Public Health, Graduate School of Dankook University, Cheonan, Korea ] Co-first authors
• Young Ki Lee [ Professor, Department of Biomedical Laboratory Science, College of Health & Welfare, Dankook University Cheonan, Korea ]
• Jae Kyung Kim [ Professor, Department of Biomedical Laboratory Science, College of Health & Welfare, Dankook University Cheonan, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Advanced Culture Technology(IJACT)

• 간기

  계간

• pISSN

  2288-7202

• eISSN

  2288-7318

• 수록기간

  2013~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 600 DDC 700