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Yu J, Kim W, Chang YK, Kim TS, Hong SJ, Ahn HJ, Nam HW, Kim D. Clusters of Toxoplasmosis in Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:251-256. [PMID: 34218596 PMCID: PMC8255494 DOI: 10.3347/kjp.2021.59.3.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/22/2021] [Indexed: 11/23/2022]
Abstract
We find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in Gyodong-myeon and Samsan-myeon of Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in the areas in 2019 were analyzed to detect clusters of the infection. The cluster was investigated using the SaTScan program which is based on Kulldorff's scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelihood ratio. Jiseok-ri and Insa-ri were found to be a cluster in Gyodong-myeon and Seokmo-ri was the cluster in Samsan-myeon. Yangji-ri and Igil-ri were found to be a cluster in Cheorwon-gun and Madal-ri and Baebong-ri were the cluster in Goseong-gun. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.
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Affiliation(s)
- Jihye Yu
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Woojin Kim
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Yoon Kyung Chang
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Tong-Soo Kim
- Department of Parasitology and Tropical Medicine and Inha Research Institute for Medical Sciences, Inha University School of Medicine, Incheon 22333, Korea
| | - Sung-Jong Hong
- Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea
| | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Dongjae Kim
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
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Jung J, Lee J, Chang YK, Ahn SK, Park SH, Hong SJ, Lee J, Chong CK, Ahn HJ, Nam HW, Kim TS, Kim D. Seroprevalence of Toxoplasma gondii assayed using Rapid Diagnostic Tests among Residents in Three Counties Adjacent to The Demilitarized Zone, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:9-14. [PMID: 33684982 PMCID: PMC7939962 DOI: 10.3347/kjp.2021.59.1.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/15/2021] [Indexed: 11/23/2022]
Abstract
Toxoplasma gondii seroprevalence have been rapidly increasing in some parts of Korea. We analyzed prevalence of anti-Toxoplasma gondii antibodies, using a rapid diagnostic test (RDT), in the sera of 552 residents in Ganghwa-gun, 661 ones in Cheorwon-gun, and 305 ones in Goseong-gun, Korea in 2019. IgG/IgM RDT mounted with recombinant fragment of major surface antigen (SAG1), glutathione-S-transferase-linker-SAG1A, were applied to the sera. IgG seroprevalence was 28.1% in Ganghwa-gun, 19.5% in Cheorwon-gun and 35.7% in Goseong-gun. Odds ratios comparing Cheorwon vs Ganghwa was 0.63 (P=0.001) and Goesong versus Ganghwa was 1.47 (P=0.01) adjusting age and sex. Goseong had highest seroprevalence among the 3 counties both in crude rates and logistic regression. Although Cheorwon and Goseong are adjacent to the demilitarized zone (DMZ) in Korea, seroprevalence rate was much higher in Goseong. Further investigation on other DMZ-closed areas is necessary whether they have high prevalence rates compared to the other areas. T. gondii prevalence in Korea is still persists; proper health policy should be established.
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Affiliation(s)
- Jeehi Jung
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Jinyoung Lee
- Department of Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| | - Yoon Kyung Chang
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Seong Kyu Ahn
- Department of Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| | - Seo Hye Park
- Department of Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| | - Sung-Jong Hong
- Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea
| | | | | | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Tong-Soo Kim
- Department of Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| | - Dongjae Kim
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
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Kim W, Chang YK, Kim TS, Hong SJ, Ahn HJ, Nam HW, Kim D. Clusters of Toxoplasmosis in Gyodong-Myeon and Samsan-Myeon, Ganghwa-Gun, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2020; 58:493-497. [PMID: 33202501 PMCID: PMC7672238 DOI: 10.3347/kjp.2020.58.5.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 09/29/2020] [Indexed: 11/23/2022]
Abstract
The purpose of this study is to find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in 2 islands of Gyodong-myeon and Samsan-myeon in Ganghwa-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in 2 islands from 2010 to 2013 were analyzed to detect clusters of the infection. The cluster was investigated using the SatScan program which is based on Kulldorff’s scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelyhood ratio. Jiseok-ri was found to be a cluster in Gyodong-myeon and Ha-ri was the cluster in Samsan-myeon. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.
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Affiliation(s)
- Woojin Kim
- Department of Biomedicine Health Science, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Yoon Kyung Chang
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Tong-Soo Kim
- Department of Parasitology and Tropical Medicine and Inha Research Institute for Medical Sciences, Inha University School of Medicine, Incheon 22333, Korea
| | - Sung-Jong Hong
- Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea
| | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Dongjae Kim
- Department of Biomedicine Health Science, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
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Serological and molecular rapid diagnostic tests for Toxoplasma infection in humans and animals. Eur J Clin Microbiol Infect Dis 2019; 39:19-30. [PMID: 31428897 PMCID: PMC7087738 DOI: 10.1007/s10096-019-03680-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 08/11/2019] [Indexed: 02/07/2023]
Abstract
Infection by Toxoplasma gondii is prevalent worldwide. The parasite can infect a broad spectrum of vertebrate hosts, but infection of fetuses and immunocompromised patients is of particular concern. Easy-to-perform, robust, and highly sensitive and specific methods to detect Toxoplasma infection are important for the treatment and management of patients. Rapid diagnostic methods that do not sacrifice the accuracy of the assay and give reproducible results in a short time are highly desirable. In this context, rapid diagnostic tests (RDTs), especially with point-of-care (POC) features, are promising diagnostic methods in clinical microbiology laboratories, especially in areas with minimal laboratory facilities. More advanced methods using microfluidics and sensor technology will be the future trend. In this review, we discuss serological and molecular-based rapid diagnostic tests for detecting Toxoplasma infection in humans as well as animals.
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