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Original Article
One-Step Reverse Transcription-Polymerase Chain Reaction for Ebola and Marburg Viruses
Sun-Whan Park, Ye-Ji Lee, Won-Ja Lee, Youngmee Jee, WooYoung Choi
Osong Public Health Res Perspect. 2016;7(3):205-209.   Published online June 30, 2016
DOI: https://doi.org/10.1016/j.phrp.2016.04.004
  • 1,887 View
  • 23 Download
  • 5 Citations
AbstractAbstract PDF
Objectives
Ebola and Marburg viruses (EBOVs and MARVs, respectively) are causative agents of severe hemorrhagic fever with high mortality rates in humans and nonhuman primates. In 2014, there was a major Ebola outbreak in various countries in West Africa, including Guinea, Liberia, Republic of Sierra Leone, and Nigeria. EBOV and MARV are clinically difficult to diagnose and distinguish from other African epidemic diseases. Therefore, in this study, we aimed to develop a method for rapid identification of the virus to prevent the spread of infection.
Methods
We established a conventional one-step reverse transcription-polymerase chain reaction (RT-PCR) assay for these pathogens based on the Superscript Reverse Transcriptase-Platinum Taq polymerase enzyme mixture. All assays were thoroughly optimized using in vitro-transcribed RNA.
Results
We designed seven primer sets of nucleocapsid protein (NP) genes based on sequences from seven filoviruses, including five EBOVs and two MARVs. To evaluate the sensitivity of the RT-PCR assay for each filovirus, 10-fold serial dilutions of synthetic viral RNA transcripts of EBOV or MARV NP genes were used to assess detection limits of viral RNA copies. The potential for these primers to cross react with other filoviruses was also examined. The results showed that the primers were specific for individual genotype detection in the examined filoviruses.
Conclusion
The assay established in this study may facilitate rapid, reliable laboratory diagnosis in suspected cases of Ebola and Marburg hemorrhagic fevers.

Citations

Citations to this article as recorded by  
  • Marburg Virus Disease – A Mini-Review
    Sandip Chakraborty, Deepak Chandran, Ranjan K. Mohapatra, Mahmoud Alagawany, Mohd Iqbal Yatoo, Md. Aminul Islam, Anil K. Sharma, Kuldeep Dhama
    Journal of Experimental Biology and Agricultural S.2022; 10(4): 689.     CrossRef
  • Marburgviruses: An Update
    Caterina M Miraglia
    Laboratory Medicine.2019; 50(1): 16.     CrossRef
  • Ebola virus: A global public health menace: A narrative review
    Shamimul Hasan, SyedAnsar Ahmad, Rahnuma Masood, Shazina Saeed
    Journal of Family Medicine and Primary Care.2019; 8(7): 2189.     CrossRef
  • Fast and Parallel Detection of Four Ebola Virus Species on a Microfluidic-Chip-Based Portable Reverse Transcription Loop-Mediated Isothermal Amplification System
    Xue Lin, Xiangyu Jin, Bin Xu, Ruliang Wang, Rongxin Fu, Ya Su, Kai Jiang, Han Yang, Ying Lu, Yong Guo, Guoliang Huang
    Micromachines.2019; 10(11): 777.     CrossRef
  • The current landscape of nucleic acid tests for filovirus detection
    David J. Clark, John Tyson, Andrew D. Sails, Sanjeev Krishna, Henry M. Staines
    Journal of Clinical Virology.2018; 103: 27.     CrossRef
Brief Reports
Comparison of the Epidemiological Aspects of Imported Dengue Cases between Korea and Japan, 2006–2010
Young Eui Jeong, Won-Chang Lee, Jung Eun Cho, Myung-Guk Han, Won-Ja Lee
Osong Public Health Res Perspect. 2016;7(1):71-74.   Published online February 28, 2016
DOI: https://doi.org/10.1016/j.phrp.2015.12.001
  • 1,921 View
  • 17 Download
  • 12 Citations
AbstractAbstract PDF
To compare the epidemiological characteristics of dengue cases imported by travelers or immigration in both Korea and Japan, we determined dengue incidence and related risk factors. During 2006–2010, 367 and 589 imported dengue cases were reported in Korea and Japan, respectively. In Korea, the presumptive origins for the dengue infections were Southeast Asia (82.6%), Southern Asia (13.9%), Eastern Asia (1.1%), South America (0.3%), Central America (0.3%), Africa (0.3%), and other countries (1.6%). In Japan, the origins of the infections were Southeast Asia (69.8%), Southern Asia (20.0%), Eastern Asia (1.7%), South America (2.5%), Central America (1.2%), Africa (1.2%), Oceania (2.4%), and other countries (1.2%). In both countries, more dengue cases were reported for men than for women (p < 0.01), and those aged 20–30 years accounted for > 60% of the total cases. The frequency of imported cases in summer and autumn (∼70% of total cases) was similar in both countries. This study demonstrates that there is a similar pattern of imported dengue cases in Korea and Japan. Therefore, there is a risk of an autochthonous dengue outbreak in Korea, as indicated by the recent outbreak in Japan in 2014.

Citations

Citations to this article as recorded by  
  • Molecular and Haematological Analysis of Dengue Virus-3 Among Children in Lahore, Pakistan
    Muhammad Kashif, Muhammad Afzal, Basit Zeshan, Hasnain Javed, Salma Batool, Modasrah Mazhar
    Jundishapur Journal of Microbiology.2021;[Epub]     CrossRef
  • Molecular evolution of dengue virus types 1 and 4 in Korean travelers
    Eun-Ha Hwang, Green Kim, Hoyin Chung, Hanseul Oh, Jong-Hwan Park, Gyeung Haeng Hur, JungJoo Hong, Bon-Sang Koo
    Archives of Virology.2021; 166(4): 1103.     CrossRef
  • Aedes albopictus and Aedes flavopictus (Diptera: Culicidae) pre-imaginal abundance patterns are associated with different environmental factors along an altitudinal gradient
    Luis Fernando Chaves, Mariel D. Friberg
    Current Research in Insect Science.2021; 1: 100001.     CrossRef
  • Evolution, heterogeneity and global dispersal of cosmopolitan genotype of Dengue virus type 2
    Surya Pavan Yenamandra, Carmen Koo, Suzanna Chiang, Han Shi Jeri Lim, Zhen Yuan Yeo, Lee Ching Ng, Hapuarachchige Chanditha Hapuarachchi
    Scientific Reports.2021;[Epub]     CrossRef
  • Temporal Trend of Aedes albopictus in Local Urban Parks of the Republic of Korea
    Myung-Jae Hwang, Jong-Hun Kim, Heung-Chul Kim, Myung Soon Kim, Terry A Klein, Juhwa Choi, Kisung Sim, Yeonseung Chung, Yadav Prasad Joshi, Hae-Kwan Cheong, Kristen Healy
    Journal of Medical Entomology.2020; 57(4): 1082.     CrossRef
  • A Two-Patch Mathematical Model for Temperature-Dependent Dengue Transmission Dynamics
    Jung Kim, Yongin Choi, James Kim, Sunmi Lee, Chang Lee
    Processes.2020; 8(7): 781.     CrossRef
  • Potential effects of climate change on dengue transmission dynamics in Korea
    Hyojung Lee, Jung Eun Kim, Sunmi Lee, Chang Hyeong Lee, Shamala Devi Sekaran
    PLOS ONE.2018; 13(6): e0199205.     CrossRef
  • Analysis of dengue virus burden and serotypes pattern in Faisalabad, 2016–2017
    Muhammad Yousaf, Kashaf Junaid, Muhammad Sarfaraz Iqbal, Imran Aslam, Sheraz Ahmad, Muhammad Aqeel, Usman Ali Ashfaq, Saba Khaliq, Muhammad Usman Ghani, Nayyar Waqar
    Future Virology.2018; 13(4): 245.     CrossRef
  • Seroprevalence of Toxoplasmosis with ELISA and Rapid Diagnostic Test among Residents in Gyodong-do, Inchon city, Korea: A Four-Year Follow-up
    Yeong Hoon Kim, Ji hoo Lee, Seong kyu Ahn, Tong-Soo Kim, Sung-Jong Hong, Chom-Kyu Chong, Hye-Jin Ahn, Ho-Woo Nam
    The Korean Journal of Parasitology.2017; 55(3): 247.     CrossRef
  • A Disease Around the Corner
    Hae-Wol Cho, Chaeshin Chu
    Osong Public Health and Research Perspectives.2016; 7(1): 1.     CrossRef
  • WITHDRAWN: A disease around the corner
    Hae-Wol Cho, Chaeshin Chu
    Osong Public Health and Research Perspectives.2016;[Epub]     CrossRef
  • Prospects for dengue vaccines for travelers
    Sl-Ki Lim, Yong Seok Lee, Suk Namkung, Jacqueline K Lim, In-Kyu Yoon
    Clinical and Experimental Vaccine Research.2016; 5(2): 89.     CrossRef
Ebola Hemorrhagic Fever and the Current State of Vaccine Development
Joo Eun Hong, Kee-Jong Hong, Woo Young Choi, Won-Ja Lee, Yeon Hwa Choi, Chung-Hyeon Jeong, Kwang-il Cho
Osong Public Health Res Perspect. 2014;5(6):378-382.   Published online December 31, 2014
DOI: https://doi.org/10.1016/j.phrp.2014.09.006
  • 2,128 View
  • 15 Download
  • 5 Citations
AbstractAbstract PDF
Current Ebola virus outbreak in West Africa already reached the total number of 1,323 including 729 deaths by July 31st. the fatality is around 55% in the southeastern area of Guinea, Sierra Leone, Liberia, and Nigeria. The number of patients with Ebola Hemorrhagic Fever (EHF) was continuously increasing even though the any effective therapeutics or vaccines has not been developed yet. The Ebola virus in Guinea showed 98% homology with Zaire Ebola Virus.Study of the pathogenesis of Ebola virus infection and assess of the various candidates of vaccine have been tried for a long time, especially in United States and some European countries. Even though the attenuated live vaccine and DNA vaccine containing Ebola viral genes were tested and showed efficacy in chimpanzees, those candidates still need clinical tests requiring much longer time than the preclinical development to be approved for the practical treatment.It can be expected to eradicate Ebola virus by a safe and efficient vaccine development similar to the case of smallpox virus which was extinguished from the world by the variola vaccine.

Citations

Citations to this article as recorded by  
  • Recent developments and strategies of Ebola virus vaccines
    Ashish Ranjan Sharma, Yeon-Hee Lee, Sudarshini Nath, Sang-Soo Lee
    Current Opinion in Pharmacology.2021; 60: 46.     CrossRef
  • Predictive Effects of Novelty Measured by Temporal Embeddings on the Growth of Scientific Literature
    Jiangen He, Chaomei Chen
    Frontiers in Research Metrics and Analytics.2018;[Epub]     CrossRef
  • Social network analysis and modeling of cellphone-based syndromic surveillance data for Ebola in Sierra Leone
    Jia B. Kangbai
    Asian Pacific Journal of Tropical Medicine.2016; 9(9): 851.     CrossRef
  • El desarrollo de nuevas vacunas
    Fernando González-Romo, Juan J. Picazo
    Enfermedades Infecciosas y Microbiología Clínica.2015; 33(8): 557.     CrossRef
  • Out of Africa, Into Global Health Security Agenda
    Hae-Wol Cho, Chaeshin Chu
    Osong Public Health and Research Perspectives.2014; 5(6): 313.     CrossRef
Original Articles
Cloning and Expression of Recombinant Tick-Borne Encephalitis Virus-like Particles in Pichia pastoris
Seok-Min Yun, Young Eui Jeong, Eunbyeol Wang, Ye-Ji Lee, Myung Guk Han, Chan Park, Won-Ja Lee, WooYoung Choi
Osong Public Health Res Perspect. 2014;5(5):274-278.   Published online October 31, 2014
DOI: https://doi.org/10.1016/j.phrp.2014.08.005
  • 2,108 View
  • 16 Download
  • 7 Citations
AbstractAbstract PDF
Objectives
The purpose of this study was to verify the feasibility of using the glyceraldehyde-3-phosphate dehydrogenase (GAP) promotor based Pichia pastoris expression system to produce tick-borne encephalitis virus (TBEV) virus-like particles (VLPs).
Methods
The complementary DNA encoding the TBEV prM signal peptide, prM, and E proteins of TBEV Korean strain (KrM 93) was cloned into the plasmid vector pGAPZɑA, then integrated into the genome of P. pastoris, under the control of the GAP promoter. Expression of TBEV VLPs was determined by Western blotting using monoclonal antibody against TBEV envelope (E) protein.
Results
Recombinant TBEV VLPs consisting of prM and E protein were successfully expressed using the GAP promoter-based P. pastoris expression system. The results of Western blotting showed that the recombinant proteins were secreted into the culture supernatant from the P. pastoris and glycosylated.
Conclusion
This study suggests that recombinant TBEV VLPs from P. pastoris offer a promising approach to the production of VLPs for use as vaccines and diagnostic antigens.

Citations

Citations to this article as recorded by  
  • De novo transcriptome sequencing and comparative profiling of the ovary in partially engorged and fully engorged Haemaphysalis flava ticks
    Yu Zhao, Zhe-Hui Qu, Feng-Chao Jiao
    Parasitology International.2021; 83: 102344.     CrossRef
  • Flavivirus vaccines: Virus-like particles and single-round infectious particles as promising alternatives
    Esmeralda Cuevas-Juárez, Victoria Pando-Robles, Laura A. Palomares
    Vaccine.2021; 39(48): 6990.     CrossRef
  • NS1 Recombinant Proteins Are Efficiently Produced in Pichia pastoris and Have Great Potential for Use in Diagnostic Kits for Dengue Virus Infections
    Mariana Fonseca Xisto, John Willians Oliveira Prates, Ingrid Marques Dias, Roberto Sousa Dias, Cynthia Canedo da Silva, Sérgio Oliveira de Paula
    Diagnostics.2020; 10(6): 379.     CrossRef
  • Tick-Borne Encephalitis Virus: A Quest for Better Vaccines against a Virus on the Rise
    Mareike Kubinski, Jana Beicht, Thomas Gerlach, Asisa Volz, Gerd Sutter, Guus F. Rimmelzwaan
    Vaccines.2020; 8(3): 451.     CrossRef
  • Virus-Like Particle Systems for Vaccine Development Against Viruses in the Flaviviridae Family
    Wong, Jassey, Wang, Wang, Liu, Lin
    Vaccines.2019; 7(4): 123.     CrossRef
  • ON MODERN APPROACHES TO CREATION OF A SINGLE-CYCLE VACCINE AGAINST TICK-BORNE ENCEPHALITIS
    V. A. Lashkevich, G. G. Karganova
    Problems of Virology.2018; 63(3): 101.     CrossRef
  • Production of an enzymatically active and immunogenic form of ectodomain of Porcine rubulavirus hemagglutinin-neuraminidase in the yeast Pichia pastoris
    José Luis Cerriteño-Sánchez, Gerardo Santos-López, Nora Hilda Rosas-Murrieta, Julio Reyes-Leyva, Sandra Cuevas-Romero, Irma Herrera-Camacho
    Journal of Biotechnology.2016; 223: 52.     CrossRef
Comparison of Four Serological Tests for Detecting Antibodies to Japanese Encephalitis Virus after Vaccination in Children
Go Woon Cha, Jung Eun Cho, Young Ran Ju, Young-Jin Hong, Myung Guk Han, Won-Ja Lee, Eui Yul Choi, Young Eui Jeong
Osong Public Health Res Perspect. 2014;5(5):286-291.   Published online October 31, 2014
DOI: https://doi.org/10.1016/j.phrp.2014.08.003
  • 2,213 View
  • 20 Download
  • 14 Citations
AbstractAbstract PDF
Objectives
Several different methods are currently used to detect antibodies to Japanese encephalitis virus (JEV) in serum samples or cerebrospinal fluid. These methods include the plaque reduction neutralization test (PRNT), the hemagglutination inhibition (HI) test, indirect immunofluorescence assay (IFA), and enzyme-linked immunosorbent assay (ELISA). The purpose of this study was to compare the performance of each method in detecting vaccine-induced antibodies to JEV.
Methods
The study included 29 children who had completed a primary immunization schedule with an inactivated vaccine against JEV derived from mouse brain (n = 15) or a live attenuated SA14-14-2 vaccine (n = 14). Serum samples were collected between 3 months and 47 months after the last immunization. The serum samples were tested by performing the PRNT, HI test, in-house IFA, and commercial ELISA. The antibody detection rates were compared between tests.
Results
All 29 serum samples were positive with the PRNT, showing antibody titers from 1:20 to 1:2560. The HI test showed positive rates of 86.7% (13/15) and 71.4% (10/14) in the inactivated and live attenuated vaccine groups, respectively. The results of the IFA for immunoglobulin (Ig)G were positive in 53.3% (8/15) of children in the inactivated vaccine group and 35.7% (5/14) in the live attenuated vaccine group. Neither the IFA nor ELISA detected JEV IgM antibodies in any of the 29 children.
Conclusion
These results show that detection rates of vaccine-induced antibodies to JEV have a wide range (0–100%) depending on the testing method as well as the time since immunization and individual differences between children. These findings are helpful in interpreting serological test results for the diagnosis of Japanese encephalitis in situations where vaccines are widely administered.

Citations

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  • A review on Japanese Encephalitis virus emergence, pathogenesis and detection: From conventional diagnostics to emerging rapid detection techniques
    Fatima Mohsin, Shariq Suleman, Nigar Anzar, Jagriti Narang, Shikha Wadhwa
    International Journal of Biological Macromolecules.2022; 217: 435.     CrossRef
  • Recent pharmaceutical engineered trends as theranostics for Japanese encephalitis
    Akshada Mhaske, Sanjiv Singh, Mohammed A.S. Abourehab, Akhilesh Kumar, Prashant Kesharwani, Rahul Shukla
    Process Biochemistry.2022; 122: 115.     CrossRef
  • Immunogenicity of a single fractional intradermal dose of Japanese encephalitis live attenuated chimeric vaccine
    Luis Furuya-Kanamori, Narayan Gyawali, Deborah J Mills, Christine Mills, Leon E Hugo, Gregor J Devine, Colleen L Lau
    Journal of Travel Medicine.2022;[Epub]     CrossRef
  • In silico molecular docking in DNA aptamer development
    Tholasi Nadhan Navien, Ramesh Thevendran, Hazrina Yusof Hamdani, Thean-Hock Tang, Marimuthu Citartan
    Biochimie.2021; 180: 54.     CrossRef
  • Pathobiology of Japanese encephalitis virus infection
    Kiran Bala Sharma, Sudhanshu Vrati, Manjula Kalia
    Molecular Aspects of Medicine.2021; 81: 100994.     CrossRef
  • JEV-nanobarcode and colorimetric reverse transcription loop-mediated isothermal amplification (cRT-LAMP)
    Gna Ahn, Se Hee Lee, Min-Suk Song, Beom-Ku Han, Yang-Hoon Kim, Ji-Young Ahn
    Microchimica Acta.2021;[Epub]     CrossRef
  • Review of Emerging Japanese Encephalitis Virus: New Aspects and Concepts about Entry into the Brain and Inter-Cellular Spreading
    Filgueira, Lannes
    Pathogens.2019; 8(3): 111.     CrossRef
  • Seroprevalence of Dengue Virus Antibody in Korea
    Ji Hyen Lee, Han Wool Kim, Kyung-Hyo Kim
    Pediatric Infection & Vaccine.2018; 25(3): 132.     CrossRef
  • Japanese Encephalitis: A Brief Review on Indian Perspectives
    Reshma Kulkarni, Gajanan N. Sapkal, Himanshu Kaushal, Devendra T. Mourya
    The Open Virology Journal.2018; 12(1): 121.     CrossRef
  • Clinical Characteristics of Severe Japanese Encephalitis: A Case Series from South Korea
    Kyung-Il Park, Manho Kim, Jun-Sang Sunwoo, Ki-Young Jung, Kon Chu, Keun-Hwa Jung, Sang Kun Lee, Soon-Tae Lee, Jangsup Moon
    The American Journal of Tropical Medicine and Hygi.2017; 97(2): 369.     CrossRef
  • JAPANESE ENCEPHALITIS, RECENT PERSPECTIVES ON VIRUS GENOME, TRANSMISSION, EPIDEMIOLOGY, DIAGNOSIS AND PROPHYLACTIC INTERVENTIONS
    Arumugam Karthikeyan, Subramaniyan Shanmuganathan, Selvaraj Pavulraj, Govinthasamy Prabakar, Selvaraj Pavithra, Kannan Porteen, Govindaraj Elaiyaraja, Yashpal Singh Malik
    Journal of Experimental Biology and Agricultural S.2017; 5(6): 730.     CrossRef
  • Prevalence of Neutralizing Antibodies to Japanese Encephalitis Virus among High-Risk Age Groups in South Korea, 2010
    Eun Ju Lee, Go-Woon Cha, Young Ran Ju, Myung Guk Han, Won-Ja Lee, Young Eui Jeong, Nagendra R Hegde
    PLOS ONE.2016; 11(1): e0147841.     CrossRef
  • A Novel Immunochromatographic Test Applied to a Serological Survey of Japanese Encephalitis Virus on Pig Farms in Korea
    Go-Woon Cha, Eun Ju Lee, Eun-Joo Lim, Kang Suk Sin, Woo Won Park, Doo Young Jeon, Myung Guk Han, Won-Ja Lee, Woo-Young Choi, Young Eui Jeong, Lark L. Coffey
    PLOS ONE.2015; 10(5): e0127313.     CrossRef
  • Silent Circulation of Ross River Virus in French Polynesia
    Maite Aubry, Jérôme Finke, Anita Teissier, Claudine Roche, Julien Broult, Sylvie Paulous, Philippe Desprès, Van-Mai Cao-Lormeau, Didier Musso
    International Journal of Infectious Diseases.2015; 37: 19.     CrossRef
Development of a Diagnostic Kit to Detect Cryptosporidium parvum and Giardia lamblia
Hyeng-Il Cheun, Byung-Suk Chung, Da-Won Ma, Bo-La Goo, Shin-Hyeong Cho, Mi-jung Ji, Won-Ja Lee
Osong Public Health Res Perspect. 2013;4(3):146-151.   Published online June 30, 2013
DOI: https://doi.org/10.1016/j.phrp.2013.04.006
  • 2,283 View
  • 18 Download
  • 7 Citations
AbstractAbstract PDF
Objectives
This study aims to develop a high-sensitivity antibody diagnostic kit that will enable a rapid and accurate detection of Cryptospofidium parvum and Giardia lamblia in patients with diarrhea.
Methods
The cultivated C. parvum oocysts and G. lamblia cysts in each calf and dog were injected to mice to obtain antibodies, which were titrated. Spleen cells of the immunized mouse were separated and blended with myelomas to produce hybrid cell lines that form monoclonal antibodies. Using ELISA method, antibodies that specifically respond to C. parvum and G.lamblia were then selected. The cells were injected into the abdominal cavity of a BALB/c mouse to isolate hydrops abdominis containing high level of antibodies. The IgG antibody was purified using protein G gel.
Results
The detection limit of monoclonal antibodies for Cryptosporidium parvum and Giardia lamblia was 125 oocysts/mL and 1250 cysts/mL, respectively. In addition, during testing they did not show cross-reactivity to viruses (n = 15), bacteria (n =17), and parasites (n = 9).
Conclusion
The rapid diagnostic antibody kit developed in this study, which specifically responds to C. parvum and G. lamblia, will be useful in detecting and monitoring diarrheal infections.

Citations

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    Journal of Hazardous Materials.2022; 421: 126714.     CrossRef
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    The Korean Journal of Parasitology.2016; 54(5): 631.     CrossRef
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The First Outbreak of Giardiasis with Drinking Water in Korea
Hyeng-Il Cheun, Cheon-Hyeon Kim, Shin-Hyeong Cho, Da-Won Ma, Bo-La Goo, Mun-Su Na, Seung-Ki Youn, Won-Ja Lee
Osong Public Health Res Perspect. 2013;4(2):89-92.   Published online April 30, 2013
DOI: https://doi.org/10.1016/j.phrp.2013.03.003
  • 1,982 View
  • 18 Download
  • 22 Citations
AbstractAbstract PDF
Objectives
To identify the pathogen of the diarrhea outbreak in a village in Jeollabuk province in Korea in April 2010.
Methods
DNA extraction was performed from the 120 L of collected water, which was centrifuged at 10,000 x g for 30 min. PCR reactions were conducted in a total of 25 ul, which included PCR premix (GenDEPOT, Barker, TX, USA), 2 ul (∼100 ng) of extracted DNA, and 10 pmol of each primer.
Results
Nine people out of 25 had a symptom of abdominal pain accompanied by diarrhea after they used stored valley water in a water tank as a provisional water supply source without chlorine sterilization. Among them Giardia lamblia was detected in fecal samples of 7 people using the polymerase chain reaction method. Although G. lamblia was also detected from water provided by the provisional water supply system stored in the water tank and used as drinking water, it was not detected in the water tank itself. This water-borne outbreak is considered to have occurred when the provisional water supply tube was destroyed under a building construction and contaminated by G. lamblia, but its precise cause has not been clarified.
Conclusion
This outbreak resulting from G. lamblia is very meaningful as the first outbreak of an infection by a water-borne parasite in Korea.

Citations

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Articleses
Longitudinal and Cross-Sectional Genetic Diversity in the Korean Peninsula Based on the P vivax Merozoite Surface Protein Gene [Volume 2, Issue 3, December 2011, Pages 158 - 163]
Jung-Yeon Kim, Eun-Jung Suh, Hyo-Soon Yu, Hyun-Sik Jung, In-Ho Park, Yien-Kyeoug Choi, Kyoung-Mi Choi, Shin-Hyeong Cho, Won-Ja Lee
Osong Public Health Res Perspect. 2012;3(1):63-63.   Published online December 31, 2011
DOI: https://doi.org/10.1016/j.phrp.2011.11.039.
  • 1,722 View
  • 11 Download
PDF
Longitudinal and Cross-Sectional Genetic Diversity in the Korean Peninsula Based on the P vivax Merozoite Surface Protein Gene
Jung-Yeon Kim, Eun-Jung Suh, Hyo-Soon Yu, Hyun-Sik Jung, In-Ho Park, Yien-Kyeoug Choi, Kyoung-Mi Choi, Shin-Hyeong Cho, Won-Ja Lee
Osong Public Health Res Perspect. 2011;2(3):158-163.   Published online December 31, 2011
DOI: https://doi.org/10.1016/j.phrp.2011.11.039
  • 1,753 View
  • 15 Download
  • 4 Citations
AbstractAbstract PDF
Objectives
Vivax malaria has reemerged and become endemic in Korea. Our study aimed to analyze by both longitudinal and cross-sectional genetic diversity of this malaria based on the P vivax Merozoite Surface Protein (PvMSP) gene parasites recently found in the Korean peninsula.
Methods
PvMSP-1 gene sequence analysis from P vivax isolates (n = 835) during the 1996-2010 period were longitudinally analyzed and the isolates from the Korean peninsula through South Korea, the demilitarized zone and North Korea collected in 2008-2010 were enrolled in an overall analysis of MSP-1 gene diversity.
Results
New recombinant subtypes and severe multiple-cloneinfection rates were observed in recent vivax parasites. Regional variation was also observed in the study sites.
Conclusion
This study revealed the great complexity of genetic variation and rapid dissemination of genes in P vivax. It also showed interesting patterns of diversity depending, on the region in the Korean Peninsula. Understanding the parasiteninsula. Under genetic variation may help to analyze trends and assess the extent of endemic malaria in Korea.

Citations

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Original Article
Prevalence of Clonorchis sinensis Infections Along the Five Major Rivers in Republic of Korea, 2007
Hyun-Kyung Kim, Hyeng-Il Cheun, Byung-Suk Cheun, Ki-Yeon Lee, Tong-Soo Kim, Sang-Eun Lee, Won-ja Lee, Shin-Hyeong Cho
Osong Public Health Res Perspect. 2010;1(1):43-49.   Published online December 31, 2010
DOI: https://doi.org/10.1016/j.phrp.2010.12.010
  • 1,850 View
  • 11 Download
  • 19 Citations
AbstractAbstract PDF
Objectives
The prevalence of Clonorchis sinensis infection was investigated among residents of the five major river basins, that is, Hangang, Nakdonggang, Seomjingang, Yeongsangang, and Geumgang River basins in Korea.
Methods
From January to December 2007, a total of 31,268 stool samples were collected from 29 localities and examined by the formalin-ether sedimentation technique.
Results
Intestinal parasite eggs and/or protozoan cysts were detected from 2957 (9.5%) inhabitants. Number of residents harbouring helminth eggs in the faeces was 2542 (8.1%) for C. sinensis, 255 (0.8%) for Heterophyes spp., 36 (0.1%) for Echinostoma spp., 30 (0.1%) for Trichuris trichiura, 8 (0.03%) for Ascaris lumbricoides, 7 (0.02%) for Gymnophalloide seoi, and 50 (0.02%) for Trichostrongylus orientalis. Number of residents harbouring protozoan cysts in the faeces was 133 (1.3%) for Entamoeba spp. and 50 (0.2%) for Giardia lamblia. The positive rates of C. sinensis in Nakdonggang, Seomjingang, Yeongsangang, Geumgang, and Hangang River basins were 12.2%, 9.5%, 3.3%, 3.0%, and 1.0%, respectively. The egg positive rate of C. sinensis was higher in male (10.6%) than in female (6.1%), and the age group of 50s had the highest positive rate (10.4%).
Conclusion
The result of this study revealed little decrease in positive rate of C. sinensis compared with the result of southern endemic areas of Korea in 2006.

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PHRP : Osong Public Health and Research Perspectives