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Trang UTH, Phuong HVM, Hoang NH, Son NV, Thanh LT, Hang NLK, Cuong VD, Huong TTT, Hien NT, Anh NP, Mai LQ. Circulation of human respiratory syncytial virus and new ON1 genotype in northern Viet Nam, 2017-2020. Western Pac Surveill Response J 2023; 14:1-9. [PMID: 38021214 PMCID: PMC10646430 DOI: 10.5365/wpsar.2023.14.4.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Abstract
Objective Human respiratory syncytial virus (RSV) is a primary cause of paediatric severe acute respiratory infection (SARI) worldwide, especially in developing countries. We investigated the genetic characteristics of RSV in northern Viet Nam to determine the prevalence and distribution of subtypes as well as the diversity and transmission patterns of genotypes. Methods In two facilities, from January 2017 to December 2020, 1563 clinical specimens were collected from paediatric patients hospitalized with SARI and tested for RSV. Selected positive samples underwent sequencing analysis targeting the second hypervariable region of the G gene using next-generation sequencing. Results The RSV positivity rate was 28.02% (438/1563 samples), and prevalence was highest in children aged < 1 year (43.84%; 192/438). Subtype RSV-A accounted for 53.42% (234/438) of cases, RSV-B for 45.89% (201/438), and there was coinfection in 0.68% (3/438). Both subtypes cocirculated and peaked during August-September in each year of the study. Phylogenetic analysis showed that RSV-A samples belonged to the ON1 genotype, which has three subgenotypes: ON1.1, ON1.2 and ON1.3. However, we did not find the 72-nucleotide duplication in the second hypervariable region of the G gene, a characteristic of genotype ON1, in any RSV-A samples. RSV-B samples belonged to genotype BA9. Discussion Our results provide additional molecular characterization of RSV infections in Viet Nam. Specially, our study is the first to report the absence of the 72-nucleotide duplication in the G gene of RSV-A genotype ON1 in Viet Nam, which may help in understanding the genetic evolution of RSV and be useful for vaccine development in the future.
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Affiliation(s)
- Ung Thi Hong Trang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | | | - Nguyen Huy Hoang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Nguyen Vu Son
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | - Le Thi Thanh
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | | | - Vuong Duc Cuong
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | | | - Nguyen Thi Hien
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | | | - Le Quynh Mai
- National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
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Yusof NBM, Khor ZS, Bakar RSBA, Zaman KHBK, Chem YK, Fatini NA, Salleh NHB, Sengol S, Chin S, Prum S, Chhe V, Vy P, Mirasin A, Ibarahim NA, Azhar I, Momin MHFA, Hafneh NA, Ikawati HD, Pawestri HA, Nugraha AA, Puspa KD, Rojanawiwat A, Okada PA, Phuygun S, Thanadachakul T, Piromtong P, Phuong HVM, Trang UTH, Anh NP, Son NV, Thanh LT, Noordin NM, Tan JL. Linkage disequilibrium suggests genomic stability in Omicron clades of SARS-CoV-2 from the ASEAN countries. J Travel Med 2023; 30:taad020. [PMID: 36795049 PMCID: PMC10481408 DOI: 10.1093/jtm/taad020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023]
Affiliation(s)
| | - Zhi Shan Khor
- Faculty of Information Science and Technology, Multimedia University, Melaka, Malaysia
| | | | | | - Yu Kie Chem
- National Public Health Laboratory, Ministry of Health, Putrajaya, Malaysia
| | - Nur Aina Fatini
- National Public Health Laboratory, Ministry of Health, Putrajaya, Malaysia
| | | | - Selvanesan Sengol
- National Public Health Laboratory, Ministry of Health, Putrajaya, Malaysia
| | - Savuth Chin
- National Public Health Laboratory, National Institute of Public Health, Phnom Penh, Cambodia
| | - Sitha Prum
- National Public Health Laboratory, National Institute of Public Health, Phnom Penh, Cambodia
| | - Visal Chhe
- National Public Health Laboratory, National Institute of Public Health, Phnom Penh, Cambodia
| | - Phally Vy
- National Public Health Laboratory, National Institute of Public Health, Phnom Penh, Cambodia
| | | | | | - Izzati Azhar
- Department of Laboratory Services, Ministry of Health, Brunei
| | | | | | - Hartanti Dian Ikawati
- National Referral Laboratory Prof. Sri Oemijati, Center for Resilience and Human Resources, Health Policy Agency, Jakarta, Indonesia
| | - Hana Apsari Pawestri
- National Referral Laboratory Prof. Sri Oemijati, Center for Resilience and Human Resources, Health Policy Agency, Jakarta, Indonesia
| | - Arie Ardiansyah Nugraha
- National Referral Laboratory Prof. Sri Oemijati, Center for Resilience and Human Resources, Health Policy Agency, Jakarta, Indonesia
| | - Kartika Dewi Puspa
- National Referral Laboratory Prof. Sri Oemijati, Center for Resilience and Human Resources, Health Policy Agency, Jakarta, Indonesia
| | - Archawin Rojanawiwat
- Department of Medical Sciences, Ministry of Public Health, National Institute of Health, Yasothon, Thailand
| | - Pilailuk Akkapaiboon Okada
- Department of Medical Sciences, Ministry of Public Health, National Institute of Health, Yasothon, Thailand
| | - Siripaporn Phuygun
- Department of Medical Sciences, Ministry of Public Health, National Institute of Health, Yasothon, Thailand
| | - Thanutsapa Thanadachakul
- Department of Medical Sciences, Ministry of Public Health, National Institute of Health, Yasothon, Thailand
| | - Pakorn Piromtong
- Department of Medical Sciences, Ministry of Public Health, National Institute of Health, Yasothon, Thailand
| | | | | | - Nguyen Phuong Anh
- National Institute of Hygiene and Epidemiology (NIHE), Ðà Nãng, Vietnam
| | - Nguyen Vu Son
- National Institute of Hygiene and Epidemiology (NIHE), Ðà Nãng, Vietnam
| | - Le Thi Thanh
- National Institute of Hygiene and Epidemiology (NIHE), Ðà Nãng, Vietnam
| | - Noorliza Mohamad Noordin
- National Public Health Laboratory, Ministry of Health, Putrajaya, Malaysia
- National Institute of Hygiene and Epidemiology (NIHE), Ðà Nãng, Vietnam
| | - Joon Liang Tan
- Faculty of Information Science and Technology, Multimedia University, Melaka, Malaysia
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Anh NP. Assessment of the financial safety of securities companies in Vietnam. ANNALS OF COMPUTER SCIENCE AND INFORMATION SYSTEMS 2022. [DOI: 10.15439/2021km87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Tinh NT, Van NTT, Anh NP, Ha HKP, Tri N. CuO and CeO 2-doped catalytic material synthesized from red mud and rice husk ash for p-xylene deep oxidation. J Environ Sci Health A Tox Hazard Subst Environ Eng 2019; 54:352-358. [PMID: 30633631 DOI: 10.1080/10934529.2018.1551649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/14/2018] [Accepted: 11/18/2018] [Indexed: 06/09/2023]
Abstract
CuO-CeO2 catalysts supported on material synthesized from red mud and rice husk ash (CuO-CeO2/ZRM) were prepared by co-impregnation method. The role of CeO2 additive in the improvement of physicochemical properties and catalytic activity of CuO-CeO2/ZRM catalysts were emphasized. Several techniques, including Brunauer-Emmett-Teller Nitrogen physisorption measurements, X-ray powder diffraction, hydrogen temperature programed reduction, scanning electron microscopy and transmission electron microscopy (TEM) were used to investigate the properties of catalysts. Crystallite size calculated by Scherrer' equation was 17.4 - 21.8 nm. Modification of 5 wt% CuO/ZRM catalyst with CeO2 had reduced the size of the nanoparticles leading to a significant enhancement of the catalytic activity in p-xylene deep oxidation at temperature range of 275 - 400 °C. The 5 wt% CuO/ZRM sample promoted by 3 wt% of nanoparticle CeO2 with the average size of 17.5 nm and BET surface area of 31.3 m2 g-1 exhibited the best activity for p-xylene deep oxidation. In this sample, the conversion of p-xylene reaches to 90% at 350 °C.
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Affiliation(s)
- N T Tinh
- a Research Institute for Sustainable Energy, University of Technology - VNU-HCM , Ho Chi Minh City , Vietnam
| | - N T T Van
- b Institute of Chemical Technology - VAST , Ho Chi Minh City , Vietnam
| | - N P Anh
- b Institute of Chemical Technology - VAST , Ho Chi Minh City , Vietnam
| | - H K P Ha
- a Research Institute for Sustainable Energy, University of Technology - VNU-HCM , Ho Chi Minh City , Vietnam
| | - N Tri
- b Institute of Chemical Technology - VAST , Ho Chi Minh City , Vietnam
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Zaraket H, Kondo H, Hibino A, Yagami R, Odagiri T, Takemae N, Tsunekuni R, Saito T, Myint YY, Kyaw Y, Oo KY, Tin HH, Lin N, Anh NP, Hang NLK, Mai LQ, Hassan MR, Shobugawa Y, Tang J, Dbaibo G, Saito R. Full Genome Characterization of Human Influenza A/H3N2 Isolates from Asian Countries Reveals a Rare Amantadine Resistance-Conferring Mutation and Novel PB1-F2 Polymorphisms. Front Microbiol 2016; 7:262. [PMID: 27014195 PMCID: PMC4779883 DOI: 10.3389/fmicb.2016.00262] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/17/2016] [Indexed: 11/21/2022] Open
Abstract
Influenza A viruses evolve at a high rate requiring continuous monitoring to maintain the efficacy of vaccines and antiviral drugs. We performed next generation sequencing analysis of 100 influenza A/H3N2 isolates collected in four Asian countries (Japan, Lebanon, Myanmar, and Vietnam) during 2012-2015. Phylogenetic analysis revealed several reassortment events leading to the circulation of multiple clades within the same season. This was particularly evident during the 2013 and 2013/2014 seasons. Importantly, our data showed that certain lineages appeared to be fitter and were able to persist into the following season. The majority of A/H3N2 viruses continued to harbor the M2-S31N mutation conferring amantadine-resistance. In addition, an S31D mutation in the M2-protein, conferring a similar level of resistance as the S31N mutation, was detected in three isolates obtained in Japan during the 2014/2015 season. None of the isolates possessed the NA-H274Y mutation conferring oseltamivir-resistance, though a few isolates were found to contain mutations at the catalytic residue 151 (D151A/G/N or V) of the NA protein. These variations did not alter the susceptibility to neuraminidase inhibitors and were not detected in the original clinical specimens, suggesting that they had been acquired during their passage in MDCK cells. Novel polymorphisms were detected in the PB1-F2 open-reading frame resulting in truncations in the protein of 24-34 aminoacids in length. Thus, this study has demonstrated the utility of monitoring the full genome of influenza viruses to allow the detection of the potentially fittest lineages. This enhances our ability to predict the strain(s) most likely to persist into the following seasons and predict the potential degree of vaccine match or mismatch with the seasonal influenza season for that year. This will enable the public health and clinical teams to prepare for any related healthcare burden, depending on whether the vaccine match is predicted to be good or poor for that season.
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Affiliation(s)
- Hassan Zaraket
- Department of Pathology, Immunology, and Microbiology, Faculty of Medicine American University of BeirutBeirut, Lebanon
- Center for Infectious Disease Research, Faculty of Medicine American University of BeirutBeirut, Lebanon
| | - Hiroki Kondo
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
| | - Akinobu Hibino
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
| | - Ren Yagami
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
| | - Takashi Odagiri
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
| | - Nobuhiro Takemae
- Influenza and Prion Disease Research Center, National Institute of Animal Health, National Agriculture and Food Research OrganizationIbaraki, Japan
| | - Ryota Tsunekuni
- Influenza and Prion Disease Research Center, National Institute of Animal Health, National Agriculture and Food Research OrganizationIbaraki, Japan
| | - Takehiko Saito
- Influenza and Prion Disease Research Center, National Institute of Animal Health, National Agriculture and Food Research OrganizationIbaraki, Japan
| | | | - Yi Yi Myint
- Department of Traditional MedicineNay Pyi Taw, Myanmar
| | | | - Khin Yi Oo
- National Health LaboratoryYangon, Myanmar
| | | | - Nay Lin
- Pyinmana Township HospitalNay Pyi Taw, Myanmar
| | | | | | - Le Quynh Mai
- National Institute of Hygiene and EpidemiologyHanoi, Vietnam
| | - Mohd R. Hassan
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
- Department of Community Health, Faculty of Medicine, UKM Medical CentreKuala Lumpur, Malaysia
| | - Yugo Shobugawa
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
| | - Julian Tang
- Clinical Microbiology, University Hospitals LeicesterLeicester, UK
- Department of Infection, Immunity and Inflammation, University of LeicesterLeceister, UK
| | - Ghassan Dbaibo
- Center for Infectious Disease Research, Faculty of Medicine American University of BeirutBeirut, Lebanon
- Division of Pediatric Infectious Diseases, Department of Pediatrics and Adolescent Medicine and the Center for Infectious Diseases Research, American University of Beirut Medical CenterBeirut, Lebanon
| | - Reiko Saito
- Division of International Health (Public Health), Graduate School of Medical and Dental Sciences, Niigata UniversityNiigata, Japan
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