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Nyunt MH, Kyaw MP, Thant KZ, Shein T, Han SS, Zaw NN, Han JH, Lee SK, Muh F, Kim JY, Cho SH, Lee SE, Yang EJ, Chang CL, Han ET. Effective High-Throughput Blood Pooling Strategy before DNA Extraction for Detection of Malaria in Low-Transmission Settings. Korean J Parasitol 2016; 54:253-9. [PMID: 27417078 PMCID: PMC4977795 DOI: 10.3347/kjp.2016.54.3.253] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 11/26/2022]
Abstract
In the era of (pre) elimination setting, the prevalence of malaria has been decreasing in most of the previously endemic areas. Therefore, effective cost- and time-saving validated pooling strategy is needed for detection of malaria in low transmission settings. In this study, optimal pooling numbers and lowest detection limit were assessed using known density samples prepared systematically, followed by genomic DNA extraction and nested PCR. Pooling strategy that composed of 10 samples in 1 pool, 20 µl in 1 sample, was optimal, and the parasite density as low as 2 p/µl for both falciparum and vivax infection was enough for detection of malaria. This pooling method showed effectiveness for handling of a huge number of samples in low transmission settings (<9% positive rate). The results indicated that pooling of the blood samples before DNA extraction followed by usual nested PCR is useful and effective for detection of malaria in screening of hidden cases in low-transmission settings.
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Affiliation(s)
- Myat Htut Nyunt
- Department of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.,Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Myat Phone Kyaw
- Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Kyaw Zin Thant
- Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Thinzer Shein
- Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Soe Soe Han
- Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Ni Ni Zaw
- Department of Medical Research, Yangon, Republic of the Union of Myanmar
| | - Jin-Hee Han
- Department of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea
| | - Seong-Kyun Lee
- Department of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea
| | - Fauzi Muh
- Department of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea
| | - Jung-Yeon Kim
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Sang-Eun Lee
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Eun-Jeong Yang
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Chulhun L Chang
- Department of Laboratory Medicine, Pusan National University Yangsan Hospital, Yansan 50612, Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea
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