- Annual Fluctuation in Chigger Mite Populations and Orientia Tsutsugamushi Infections in Scrub Typhus Endemic Regions of South Korea
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Seong Yoon Kim, Byoungchul Gill, Bong Gu Song, Hyuk Chu, Won Il Park, Hee Il Lee, E-hyun Shin, Shin-Hyeong Cho, Jong Yul Roh
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Osong Public Health Res Perspect. 2019;10(6):351-358. Published online December 31, 2019
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DOI: https://doi.org/10.24171/j.phrp.2019.10.6.05
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Abstract
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Objectives
Chigger mites are vectors for scrub typhus. This study evaluated the annual fluctuations in chigger mite populations and Orientia tsutsugamushi infections in South Korea.
Methods
During 2006 and 2007, chigger mites were collected monthly from wild rodents in 4 scrub typhus endemic regions of South Korea. The chigger mites were classified based on morphological characteristics, and analyzed using nested PCR for the detection of Orientia tsutsugamushi.
Results
During the surveillance period, the overall trapping rate for wild rodents was 10.8%. In total, 17,457 chigger mites (representing 5 genera and 15 species) were collected, and the average chigger index (representing the number of chigger mites per rodent), was 31.7. The monthly chigger index was consistently high (> 30) in Spring (March to April) and Autumn (October to November). The mite species included Leptotrombidium pallidum (43.5%), L. orientale (18.9%), L. scutellare (18.1%), L. palpale (10.6%), and L. zetum (3.6%). L. scutellare and L. palpale populations, were relatively higher in Autumn. Monthly O. tsutsugamushi infection rates in wild rodents (average: 4.8%) and chigger mites (average: 0.7%) peaked in Spring and Autumn.
Conclusion
The findings demonstrated a bimodal pattern of the incidence of O. tsutsugamushi infections. Higher infection rates were observed in both wild rodents and chigger mites, in Spring and Autumn. However, this did not reflect the unimodal incidence of scrub typhus in Autumn. Further studies are needed to identify factors, such as human behavior and harvesting in Autumn that may explain this discordance.
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Citations
Citations to this article as recorded by
- Changes in seasonality and sex ratio of scrub typhus: a case study of South Korea from 2003 to 2019 based on wavelet transform analysis
Jeehyun Kim, Penelope Vounatsou, Byung Chul Chun BMC Infectious Diseases.2024;[Epub] CrossRef - Eco-epidemiology of rodent-associated trombiculid mites and infection with Orientia spp. in Southern Chile
María Carolina Silva de la Fuente, Caricia Pérez, Constanza Martínez-Valdebenito, Ruth Pérez, Cecilia Vial, Alexandr Stekolnikov, Katia Abarca, Thomas Weitzel, Gerardo Acosta-Jamett, Jessica N. Ricaldi PLOS Neglected Tropical Diseases.2023; 17(1): e0011051. CrossRef - Comparison of Chiggers (Acari: Trombiculidae, Leeuwenhoekiidae) on Two Sibling Mouse Species, Apodemus draco and A. ilex (Rodentia: Muridae), in Southwest China
Yu Guo, Xian-Guo Guo, Wen-Yu Song, Yan Lv, Peng-Wu Yin, Dao-Chao Jin Animals.2023; 13(9): 1480. CrossRef - Epidemiological characteristics of cases with scrub typhus and their correlation with chigger mite occurrence (2019–2021): A focus on case occupation and activity locations
Se‐Jin Jeong, Jin‐Hwan Jeon, Kyung won Hwang Entomological Research.2023; 53(7): 247. CrossRef - Prevalence of chigger mites and Orientia tsutsugamushi strains in northern regions of Gangwon-do, Korea
Soojin Kim, In Yong Lee, Sezim Monoldorova, Jiro Kim, Jang Hoon Seo, Tai-Soon Yong, Bo Young Jeon Parasites, Hosts and Diseases.2023; 61(3): 263. CrossRef - Infestation and distribution of chiggers on the Anderson's white‐bellied rats in southwest China
Yu Guo, Xian‐Guo Guo, Pei‐Ying Peng, Yan Lv, Rong Xiang, Wen‐Yu Song, Xiao‐Bin Huang Veterinary Medicine and Science.2023; 9(6): 2920. CrossRef - Seroprevalence and Genotypic Characterization of Orientia tsutsugamushi in Febrile Pediatric Patients Admitted in Tertiary Care Hospital of Chennai, South India
Rajagopal Murali, Sivasambo Kalpana, Panneerselvam Satheeshkumar, Prabu Dhandapani Journal of Pure and Applied Microbiology.2023; 17(4): 2232. CrossRef - Infestation and seasonal fluctuation of chigger mites on the Southeast Asian house rat (Rattus brunneusculus) in southern Yunnan Province, China
Yan Lv, Xianguo Guo, Daochao Jin, Wenyu Song, Peiying Peng, Hao Lin, Rong Fan, Chengfu Zhao, Zhiwei Zhang, Keyu Mao, Tijun Qian, Wenge Dong, Zhihua Yang International Journal for Parasitology: Parasites .2021; 14: 141. CrossRef - Nationwide Incidence of Chigger Mite Populations and Molecular Detection of Orientia tsutsugamushi in the Republic of Korea, 2020
Min-Goo Seo, Bong-Goo Song, Tae-Kyu Kim, Byung-Eon Noh, Hak Seon Lee, Wook-Gyo Lee, Hee Il Lee Microorganisms.2021; 9(8): 1563. CrossRef
- Development of a Diagnostic Kit to Detect Cryptosporidium parvum and Giardia lamblia
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Hyeng-Il Cheun, Byung-Suk Chung, Da-Won Ma, Bo-La Goo, Shin-Hyeong Cho, Mi-jung Ji, Won-Ja Lee
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Osong Public Health Res Perspect. 2013;4(3):146-151. Published online June 30, 2013
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DOI: https://doi.org/10.1016/j.phrp.2013.04.006
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4,404
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Abstract
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- 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.
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- Comprehensive review of conventional and state-of-the-art detection methods of Cryptosporidium
George Luka, Ehsan Samiei, Nishat Tasnim, Arash Dalili, Homayoun Najjaran, Mina Hoorfar Journal of Hazardous Materials.2022; 421: 126714. CrossRef - A review ofCryptosporidiumspp. and their detection in water
Eman M. Hassan, Banu Örmeci, Maria C. DeRosa, Brent R. Dixon, Syed A. Sattar, Asma Iqbal Water Science and Technology.2021; 83(1): 1. CrossRef - Portable on-chip colorimetric biosensing platform integrated with a smartphone for label/PCR-free detection of Cryptosporidium RNA
George S. Luka, Ephraim Nowak, Quin Robert Toyata, Nishat Tasnim, Homayoun Najjaran, Mina Hoorfar Scientific Reports.2021;[Epub] CrossRef - Nanomaterials‐based biosensors for detection of microorganisms and microbial toxins
Laura Sutarlie, Sian Yang Ow, Xiaodi Su Biotechnology Journal.2017;[Epub] CrossRef - ACG Clinical Guideline: Diagnosis, Treatment, and Prevention of Acute Diarrheal Infections in Adults
Mark S Riddle, Herbert L DuPont, Bradley A Connor American Journal of Gastroenterology.2016; 111(5): 602. CrossRef - Multiplex-Touchdown PCR to Simultaneously Detect Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the Major Causes of Traveler’s Diarrhea
Ji-Hun Shin, Sang-Eun Lee, Tong Soo Kim, Da-Won Ma, Jong-Yil Chai, Eun-Hee Shin The Korean Journal of Parasitology.2016; 54(5): 631. CrossRef - Advancing Cryptosporidium Diagnostics from Bench to Bedside
Raul V. Destura, Rohani B. Cena, Ma. Jowina H. Galarion, Coleen M. Pangilinan, Geraldine M. Arevalo, Ryan Oliver C. Alba, Joy Ann G. Petronio, Gielenny M. Salem, Brian Schwem, Jesus Emmanuel A. D. Sevilleja Current Tropical Medicine Reports.2015; 2(3): 150. CrossRef
- The First Outbreak of Giardiasis with Drinking Water in Korea
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Hyeng-Il Cheun, Cheon-Hyeon Kim, Shin-Hyeong Cho, Da-Won Ma, Bo-La Goo, Mun-Su Na, Seung-Ki Youn, Won-Ja Lee
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Osong Public Health Res Perspect. 2013;4(2):89-92. Published online April 30, 2013
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DOI: https://doi.org/10.1016/j.phrp.2013.03.003
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3,453
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Abstract
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- 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.
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Sarah Krumrie, Paul Capewell, Alison Smith-Palmer, Dominic Mellor, Willie Weir, Claire L. Alexander Current Research in Parasitology & Vector-Borne Di.2022; 2: 100084. CrossRef - Prevalence and molecular characterization of Giardia duodenalis in small ruminants of Shiraz, southwestern Iran: A zoonotic concern
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Deiviane A. Calegar, Beatriz C. Nunes, Kerla J. L. Monteiro, Polyanna A. A. Bacelar, Brenda B. C. Evangelista, Mayron M. Almeida, Jurecir Silva, Jéssica P. Santos, Márcio N. Boia, Lauren H. Jaeger, Filipe A. Carvalho-Costa Microorganisms.2022; 10(5): 940. CrossRef - Molecular Identification of Parasitic Protozoa Sarcocystis in Water Samples
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- 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]
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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
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Osong Public Health Res Perspect. 2012;3(1):63-63. Published online December 31, 2011
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DOI: https://doi.org/10.1016/j.phrp.2011.11.039.
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- Longitudinal and Cross-Sectional Genetic Diversity in the Korean Peninsula Based on the P vivax Merozoite Surface Protein Gene
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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
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Osong Public Health Res Perspect. 2011;2(3):158-163. Published online December 31, 2011
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DOI: https://doi.org/10.1016/j.phrp.2011.11.039
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3,344
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Abstract
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- 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.
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Citations
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- Molecular surveillance over 14 years confirms reduction of Plasmodium vivax and falciparum transmission after implementation of Artemisinin-based combination therapy in Papua, Indonesia
Zuleima Pava, Agatha M. Puspitasari, Angela Rumaseb, Irene Handayuni, Leily Trianty, Retno A. S. Utami, Yusrifar K. Tirta, Faustina Burdam, Enny Kenangalem, Grennady Wirjanata, Steven Kho, Hidayat Trimarsanto, Nicholas M. Anstey, Jeanne Rini Poespoprodjo, PLOS Neglected Tropical Diseases.2020; 14(5): e0008295. CrossRef - Distribution of Antibodies Specific to the 19-kDa and 33-kDa Fragments of Plasmodium vivax Merozoite Surface Protein 1 in Two Pathogenic Strains Infecting Korean Vivax Malaria Patients
Sylvatrie-Danne Dinzouna-Boutamba, Sanghyun Lee, Ui-Han Son, Su-Min Song, Hye Soo Yun, So-Young Joo, Dongmi Kwak, Man Hee Rhee, Dong-Il Chung, Yeonchul Hong, Youn-Kyoung Goo Osong Public Health and Research Perspectives.2016; 7(4): 213. CrossRef - The unique distribution of the Plasmodium vivax merozoite surface protein 1 in parasite isolates with short and long latent periods from the Republic of Korea
Youn-Kyoung Goo, Jun-Hye Moon, So-Young Ji, Dong-Il Chung, Yeonchul Hong, Shin-Hyung Cho, Won-Ja Lee, Jung-Yeon Kim Malaria Journal.2015;[Epub] CrossRef - Evaluation of single nucleotide polymorphisms of pvmdr1 and microsatellite genotype in Plasmodium vivax isolates from Republic of Korea military personnel
Dong-Il Chung, Sookwan Jeong, Sylvatrie-Danne Dinzouna-Boutamba, Hye-Won Yang, Sang-Geon Yeo, Yeonchul Hong, Youn-Kyoung Goo Malaria Journal.2015;[Epub] CrossRef
- Prevalence of Clonorchis sinensis Infections Along the Five Major Rivers in Republic of Korea, 2007
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Hyun-Kyung Kim, Hyeng-Il Cheun, Byung-Suk Cheun, Ki-Yeon Lee, Tong-Soo Kim, Sang-Eun Lee, Won-ja Lee, Shin-Hyeong Cho
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Osong Public Health Res Perspect. 2010;1(1):43-49. Published online December 31, 2010
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DOI: https://doi.org/10.1016/j.phrp.2010.12.010
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3,274
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Abstract
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- 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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Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Hee Il Lee, Jung-Won Ju, Myoung-Ro Lee, Jeong-Gil Park, Jihee Ahn The Korean Journal of Parasitology.2021; 59(5): 523. CrossRef - Prevalence of Clonorchis sinensis infection in fish in South‐East Asia: A systematic review and meta‐analysis
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Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju The Korean Journal of Parasitology.2019; 57(2): 145. CrossRef - Prevalence, Species Distribution, and Related Factors of Fish-Borne Trematode Infection in Ninh Binh Province, Vietnam
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