- Laboratory investigations of herpes simplex virus-1 and -2 clinical samples in Korea
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Eun Ju Oh, Young Sam Yuk, Jae Kyung Kim
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Osong Public Health Res Perspect. 2021;12(6):385-389. Published online December 1, 2021
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DOI: https://doi.org/10.24171/j.phrp.2021.0146
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 Abstract
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- Objectives
Herpes simplex virus (HSV) infections have been reported in 60% to 95% of the adult population worldwide, making them one of the most common infectious conditions globally. HSV-1 and HSV-2 cause severe disease in immunocompromised patients. Therefore, the aim of this study was to provide information that could be used to reduce the incidence of genital herpes caused by HSV-1 and HSV-2.
Methods
From September 2018 to December 2020, 59,381 specimens were collected from outpatients across primary and secondary hospitals in Korea who requested U2Bio (Seoul, Korea) to conduct molecular biological testing of their samples for sexually transmitted infections. In this study, the positivity rates of HSV-1 and HSV-2 were analyzed according to age, sex, and specimen type.
Results
In the age-specific analysis of HSV-1, the highest positivity rate (0.58%) was observed in patients under 19 years of age, whereas the lowest positivity rate (0.08%) was observed in patients aged over 70 years. In the age-specific analysis of HSV-2, the highest positivity rate (2.53%) was likewise observed in patients under 19 years of age.
Conclusion
Our study identified differences in the infection rates of HSV-1 and HSV-2 depending on patients’ sex and age. These differences will be useful for improving disease prevention and control measures for HSV-1 and HSV-2.
- Complete Sequence Analysis and Antiviral Screening of Medicinal Plants for Human Coxsackievirus A16 Isolated in Korea
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Jae-Hyoung Song, Kwisung Park, Aeri Shim, Bo-Eun Kwon, Jae-Hee Ahn, Young Jin Choi, Jae Kyung Kim, Sang-Gu Yeo, Kyungah Yoon, Hyun-Jeong Ko
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Osong Public Health Res Perspect. 2015;6(1):52-58. Published online February 28, 2015
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DOI: https://doi.org/10.1016/j.phrp.2014.12.004
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Citations
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Abstract
PDF
- Objectives
Coxsackievirus A group 16 strain (CVA16) is one of the predominant causative agents of hand, foot, and mouth disease (HFMD).
Methods
Using a specimen from a male patient with HFMD, we isolated and performed sequencing of the Korean CVA16 strain and compared it with a G10 reference strain. Also, we were investigated the effects of medicinal plant extract on the cytopathic effects (CPE) by CPE reduction assay against Korean CVA16.
Results
Phylogenetic analysis showed that the Korean CVA16 isolate belonged to cluster B-1 and was closely related to the strain PM-15765-00 isolated in Malaysia in 2000. The Korean CVA16 isolate showed 73.2% nucleotide identity to the G10 prototype strain and 98.7% nucleotide identity to PM-15765-00. Next, we assessed whether the Korean CVA16 isolate could be used for in vitro screening of antiviral agents to treat HFMD infection. Vero cells infected with the Korean CVA16 isolate showed a cytopathic effect 2 days after the infection, and the treatment of cells with Cornus officinalis, Acer triflorum, Pulsatilla koreana, and Clematis heracleifolia var. davidiana Hemsl extracts exhibited strong antiviral activity against CVA16.
Conclusion
Collectively, our work provides potential candidates for the development of vaccine and novel drugs to treat the CVA16 strain isolated from a Korean patient.
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Citations
Citations to this article as recorded by  - Recent advances in anti-coxsackievirus A16 viral drug research
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