Molecular and epidemiological study of enterovirus D68 in Taiwan
Background/purpose: As an immunofluorescence assay for enterovirus D68 (EV-D68) is not available in the enteroviruses surveillance network in Taiwan, EV-D68 may be the actual pathogen of untypeable enterovirus-suspected isolates. Methods: The untypeable isolates collected from 2007 through 2014 were...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-08-01
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| Series: | Journal of Microbiology, Immunology and Infection |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S168411821500852X |
| _version_ | 1819109376923795456 |
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| author | Yuan-Pin Huang Tsuey-Li Lin Ting-Han Lin Ho-Sheng Wu |
| author_facet | Yuan-Pin Huang Tsuey-Li Lin Ting-Han Lin Ho-Sheng Wu |
| author_sort | Yuan-Pin Huang |
| collection | DOAJ |
| description | Background/purpose: As an immunofluorescence assay for enterovirus D68 (EV-D68) is not available in the enteroviruses surveillance network in Taiwan, EV-D68 may be the actual pathogen of untypeable enterovirus-suspected isolates.
Methods: The untypeable isolates collected from 2007 through 2014 were identified by nucleic acid amplification-based methods and sequencing of the VP1 region to analyze the phylogeny and epidemiology of EV-D68 in Taiwan.
Results: Twenty-nine EV-D68 isolates were sequenced, including 15 Cluster 3 and 14 Cluster 1 viruses. Approximately 41% of the patients were children under 5 years of age and their infections peaked in August. The ratio of male to female patients was 1.5 and 3.67 for Cluster 3 and Cluster 1, respectively. Fever and respiratory symptoms were commonly reported in EV-D68-infected patients. The results of phylogenetic analyses showed that EV-D68 isolates between 2007 and 2014 belonged to different clusters and existed for years, indicating that endemic circulation of EV-D68 existed in Taiwan.
Conclusion: This study showed that EV-D68 has been endemic in Taiwan for some years despite a small number of positive cases. The continuous monitoring and efforts towards the improvement of diagnostic techniques are required to complete the surveillance system. This study provided the genetic and epidemiological information which could contribute to understanding the etiology and epidemiology of EV-D68. |
| first_indexed | 2024-12-22T03:24:51Z |
| format | Article |
| id | doaj.art-b1339d01ed074f7cbbcb03fccad04539 |
| institution | Directory Open Access Journal |
| issn | 1684-1182 |
| language | English |
| last_indexed | 2024-12-22T03:24:51Z |
| publishDate | 2017-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Microbiology, Immunology and Infection |
| spelling | doaj.art-b1339d01ed074f7cbbcb03fccad045392022-12-21T18:40:39ZengElsevierJournal of Microbiology, Immunology and Infection1684-11822017-08-0150441141710.1016/j.jmii.2015.07.015Molecular and epidemiological study of enterovirus D68 in TaiwanYuan-Pin Huang0Tsuey-Li Lin1Ting-Han Lin2Ho-Sheng Wu3Center for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, TaiwanCenter for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, TaiwanCenter for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, TaiwanCenter for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, TaiwanBackground/purpose: As an immunofluorescence assay for enterovirus D68 (EV-D68) is not available in the enteroviruses surveillance network in Taiwan, EV-D68 may be the actual pathogen of untypeable enterovirus-suspected isolates. Methods: The untypeable isolates collected from 2007 through 2014 were identified by nucleic acid amplification-based methods and sequencing of the VP1 region to analyze the phylogeny and epidemiology of EV-D68 in Taiwan. Results: Twenty-nine EV-D68 isolates were sequenced, including 15 Cluster 3 and 14 Cluster 1 viruses. Approximately 41% of the patients were children under 5 years of age and their infections peaked in August. The ratio of male to female patients was 1.5 and 3.67 for Cluster 3 and Cluster 1, respectively. Fever and respiratory symptoms were commonly reported in EV-D68-infected patients. The results of phylogenetic analyses showed that EV-D68 isolates between 2007 and 2014 belonged to different clusters and existed for years, indicating that endemic circulation of EV-D68 existed in Taiwan. Conclusion: This study showed that EV-D68 has been endemic in Taiwan for some years despite a small number of positive cases. The continuous monitoring and efforts towards the improvement of diagnostic techniques are required to complete the surveillance system. This study provided the genetic and epidemiological information which could contribute to understanding the etiology and epidemiology of EV-D68.http://www.sciencedirect.com/science/article/pii/S168411821500852Xenterovirus D68epidemiologyphylogeny |
| spellingShingle | Yuan-Pin Huang Tsuey-Li Lin Ting-Han Lin Ho-Sheng Wu Molecular and epidemiological study of enterovirus D68 in Taiwan Journal of Microbiology, Immunology and Infection enterovirus D68 epidemiology phylogeny |
| title | Molecular and epidemiological study of enterovirus D68 in Taiwan |
| title_full | Molecular and epidemiological study of enterovirus D68 in Taiwan |
| title_fullStr | Molecular and epidemiological study of enterovirus D68 in Taiwan |
| title_full_unstemmed | Molecular and epidemiological study of enterovirus D68 in Taiwan |
| title_short | Molecular and epidemiological study of enterovirus D68 in Taiwan |
| title_sort | molecular and epidemiological study of enterovirus d68 in taiwan |
| topic | enterovirus D68 epidemiology phylogeny |
| url | http://www.sciencedirect.com/science/article/pii/S168411821500852X |
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