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Jeong HW, Kim MK, Yi HJ, Kim DM, Jeon SJ, Lee HK, Oh YH, Hwang YO. Hepatitis A virus strains identified in jogaejeot associated with outbreaks in Seoul, South Korea. Lett Appl Microbiol 2021; 73:107-112. [PMID: 33797771 DOI: 10.1111/lam.13482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/23/2021] [Accepted: 03/25/2021] [Indexed: 12/15/2022]
Abstract
Jogaejeot, seasoned Venerupis philippinarum, is a traditional Korean fermented food, and hepatitis A virus (HAV) can be transmitted through contaminated food, especially bivalve shellfish, causing acute gastroenteritis worldwide. Here, we carried out a phylogenetic analysis to identify and characterize HAV strains in jogaejeot samples associated with hepatitis A (HA) outbreaks in Seoul, South Korea, in 2019. The HAV strains were identified using blast and molecular analysis of the amplified HAV VP1-P2B genome region. The HAV strains identified in the five jogaejeot samples shared at least 99% sequence identity, were all classified as genotype IA and were most closely related to strains that are widespread in East Asia. These results support a link between the consumption of jogaejeot and the HA outbreaks observed in 2019 in Seoul. In addition, they indicate a need for more stringent enforcement of food safety regulations for the shellfish industry, especially against HAV, and the value of widespread vaccination.
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Affiliation(s)
- H W Jeong
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - M K Kim
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - H J Yi
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - D M Kim
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - S J Jeon
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - H K Lee
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - Y H Oh
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - Y O Hwang
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
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Kamelian K, Montoya V, Olmstead A, Dong W, Harrigan R, Morshed M, Joy JB. Phylogenetic surveillance of travel-related Zika virus infections through whole-genome sequencing methods. Sci Rep 2019; 9:16433. [PMID: 31712570 PMCID: PMC6848190 DOI: 10.1038/s41598-019-52613-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 10/21/2019] [Indexed: 01/11/2023] Open
Abstract
In 2018, the World Health Organization identified the Zika virus (ZIKV) as a pathogen that should be prioritized for public health research due to its epidemic potential. In this study, whole-genome sequencing (WGS) of travel-acquired ZIKV infections was used to examine the limitations of phylogenetic analysis. WGS and phylogenetic analysis were performed to investigate geographic clustering of samples from five Canadians with travel-acquired ZIKV infections and to assess the limitations of phylogenetic analysis of ZIKV sequences using a phylogenetic cluster approach. Genomic variability of ZIKV samples was assessed and for context, compared with hepatitis C virus (HCV) samples. Phylogenetic analysis confirmed the suspected region of ZIKV infection for one of five samples and one sample failed to cluster with sequences from its suspected country of infection. Travel-acquired ZIKV samples depicted low genomic variability relative to HCV samples. A floating patristic distance threshold classified all pre-2000 ZIKV sequences into separate clusters, while only Cambodian, Peruvian, Malaysian, and South Korean sequences were similarly classifiable. While phylogenetic analysis of ZIKV data can identify the broad geographical region of ZIKV infection, ZIKV’s low genomic variability is likely to limit precise interpretations of phylogenetic analysis of the origins of travel-related cases.
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Affiliation(s)
- Kimia Kamelian
- University of British Columbia, Division of AIDS, Department of Medicine, Vancouver, BC, Canada.,BC Centre for Excellence in HIV/AIDS, Vancouver, BC, Canada
| | | | | | - Winnie Dong
- BC Centre for Excellence in HIV/AIDS, Vancouver, BC, Canada
| | - Richard Harrigan
- University of British Columbia, Division of AIDS, Department of Medicine, Vancouver, BC, Canada
| | - Muhammad Morshed
- BC Centre for Disease Control Public Health Laboratory, Vancouver, BC, Canada.,University of British Columbia, Department of Pathology and Laboratory Medicine, Vancouver, BC, Canada
| | - Jeffrey B Joy
- BC Centre for Excellence in HIV/AIDS, Vancouver, BC, Canada. .,University of British Columbia, Division of Infectious Diseases, Department of Medicine, Vancouver, BC, Canada.
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