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Annual Report on the External Quality Assessment Scheme for Clinical Parasitology in Korea (2017)
J Lab Med Qual Assur 2018;40:21-26
Published online March 31, 2018
© 2018 Korean Association of External Quality Assessment Service.

Eun Jeong Won1, Ji Seung Jung1, Myung Geun Shin2, Jong Hee Shin2, and Soon Pal Suh2

Departments of 1Parasitology and Tropical Medicine and 2Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
Correspondence to: Eun Jeong Won
Department of Parasitology and Tropical Medicine, Chonnam National University Medical School, 160 Baekseo-ro, Donggu, Gwangju 61469, Korea
Tel: +82-61-379-2701
Fax: +82-61-375-5834
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Annual proficiency surveys were conducted in March, May, and August of 2017 as the Korean Association of External Quality Assessment Service. Overall, four image samples (MPI-17-01, MPI-17-02, MPI-17-03, MPI-17-04) in the first trial, three image samples (MPI-17-05, MPI-17-06 , MPI-17-07) in the second trial, and a slide specimen (MPS-17-01) using parasite samples in the third trial were distributed to participating institutions. The first and second trial specimens were prepared by photographing slides made of formalinether concentrate of positive samples stored for educational purposes. The slide distributed in the third trial was prepared using cellophane tape, which was stored after diagnosis of the patients infected with Enterobius vermicularis . There were 191 participating institutions in the first, 204 in the second, and 212 in the third trial. The correct identification rates were 27.2% for MPI-17-01 Diphyllobothrium species (sp.), 96.6% for MPI-17-02 no parasite, 67.5% for MPI-17-03 Metagonimus yokogawai , 71.2% for MPI-17-04 Balantidium coli , 99.0% for MPI-17-05 Taenia sp., 99.0% for MPI-17-06 Trichuris trichiura , 92.7% for MPI-17-07 Cryptosporidium sp., and 96.7% for MPS-17-01 E. vermicularis . The current external quality assessment for clinical parasitology was performed using image samples and standard slides. Surveys of parasitic infections should be accompanied by continuous education on various parasitic infections, for which there was lack of experience of inspection in clinical laboratories. In the future, it will be necessary to establish a standard material using parasitic samples, and ultimately to conduct a survey on whole series of tests for the diagnosis of parasitic diseases.
Keywords : Quality control, Parasitology
  1. Jones RN, Glick T, Sader HS, Flamm RK, Ross JE, Rhomberg PR, et al. Educational antimicrobial susceptibility testing as a critical component of microbiology laboratory proficiency programs: American Proficiency Institute results for 2007-2011. Diagn Microbiol Infect Dis 2013;75:357-60.
    Pubmed CrossRef
  2. Snell JJ, Brown DF, Perry SF, George R. Antimicrobial susceptibility testing of enterococci: results of a survey conducted by the United Kingdom National External Quality Assessment Scheme for Microbiology. J Antimicrob Chemother 1993;32:401-11.
    Pubmed CrossRef
  3. Chaitram JM, Jevitt LA, Lary S, Tenover FC; WHO Antimicrobial Resistancce Group. The World Health Organization셲 External Quality Assurance System Proficiency Testing Program has improved the accuracy of antimicrobial susceptibility testing and reporting among participating laboratories using NCCLS methods. J Clin Microbiol 2003;41:2372-7.
    KoreaMed CrossRef
  4. Chang J, Kim MN, Kim EC, Shin JH, Lee NY, Kim S, et al. Annual report on the external quality assessment scheme for clinical microbiology in Korea (2015). J Lab Med Qual Assur 2016;38:169-93.
  5. Kwon YJ, Won EJ, Kee SJ, Kim SH, Shin MG, Shin JH, et al. Internal quality assurance status of stool examination as assessed by a questionnaire in Korean clinical laboratories. Lab Med Online 2018;8:19-23.
  6. Won EJ, Jung JS, Lee JH, Choi HJ, Kee SJ, Kim SH, et al. Detection of intestinal parasites in diarrhea samples using various diagnostic methods and evaluation of the stability of in-house quality control materials for stool examination. J Lab Med Qual Assur 2017;39:90-6.
  7. Jahan N, Khatoon R, Ahmad S. A comparison of microscopy and enzyme linked immunosorbent assay for diagnosis of Giardia lamblia in human faecal specimens. J Clin Diagn Res 2014;8:DC04-6.
    Pubmed KoreaMed
  8. Dovgalev AS, Astanina SY, Malakhov VN, Serdyuk AP, Imamkuliev KD, Gorbunova YP, et al. External quality assessment for the laboratory identification of the pathogens of parasitic diseases as an element for improving the postgraduate training of specialists. Med Parazitol (Mosk) 2016;(2):41-4.