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Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015

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Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015. / Todd, Stacy; Huong, Nguyen Thi Cam; Thanh, Nguyen Thi Le; Vy, Nguyen Ha Thao; Hung, Nguyen Thanh; Thao, Tran Thi Nhu; Phuong, Huynh Thi; van Doorn, H Rogier; Hang, V T Ty; Chau, Nguyen Van Vinh; Read, Jonathan M; Lalloo, David G; Boni, Maciej F.

In: Influenza and Other Respiratory Viruses, Vol. 12, No. 5, 09.2018, p. 623-631.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Todd, S, Huong, NTC, Thanh, NTL, Vy, NHT, Hung, NT, Thao, TTN, Phuong, HT, van Doorn, HR, Hang, VTT, Chau, NVV, Read, JM, Lalloo, DG & Boni, MF 2018, 'Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015', Influenza and Other Respiratory Viruses, vol. 12, no. 5, pp. 623-631. https://doi.org/10.1111/irv.12574

APA

Todd, S., Huong, N. T. C., Thanh, N. T. L., Vy, N. H. T., Hung, N. T., Thao, T. T. N., Phuong, H. T., van Doorn, H. R., Hang, V. T. T., Chau, N. V. V., Read, J. M., Lalloo, D. G., & Boni, M. F. (2018). Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015. Influenza and Other Respiratory Viruses, 12(5), 623-631. https://doi.org/10.1111/irv.12574

Vancouver

Todd S, Huong NTC, Thanh NTL, Vy NHT, Hung NT, Thao TTN et al. Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015. Influenza and Other Respiratory Viruses. 2018 Sep;12(5):623-631. https://doi.org/10.1111/irv.12574

Author

Todd, Stacy ; Huong, Nguyen Thi Cam ; Thanh, Nguyen Thi Le ; Vy, Nguyen Ha Thao ; Hung, Nguyen Thanh ; Thao, Tran Thi Nhu ; Phuong, Huynh Thi ; van Doorn, H Rogier ; Hang, V T Ty ; Chau, Nguyen Van Vinh ; Read, Jonathan M ; Lalloo, David G ; Boni, Maciej F. / Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015. In: Influenza and Other Respiratory Viruses. 2018 ; Vol. 12, No. 5. pp. 623-631.

Bibtex

@article{8744fe69f20744248b7ed4ff9035eca7,
title = "Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015",
abstract = "BACKGROUND: Year-round transmission of influenza has been detected in Vietnam through both national surveillance and other epidemiological studies. Understanding the demographic and clinical features of influenza-like-illness (ILI) presenting to primary care in urban Vietnam is vital to understand these transmission dynamics.METHODS: A prospective, observational study of patients with ILI in Ho Chi Minh City, Vietnam was conducted between August 2013 and November 2015 in a mix of public and private primary care settings. Molecular testing for Influenza A & B and 12 other respiratory viruses was performed.RESULTS: 1152 ILI patients were recruited. 322 and 136 subjects tested positive for influenza A and B, respectively. 193 subjects tested positive for another respiratory virus; most commonly rhinovirus and parainfluenza virus 3. Influenza was detected in 81% of the 116 study weeks. Three peaks of influenza activity were detected; an H3N2 peak April-June 2014, an influenza B peak July-December 2014, and a mixed H3N2 and H1N1 peak March-September 2015. Subjects recruited from private clinics were more likely to have higher income, and to have reported previous influenza vaccination. Antibiotic use was common (50.3%) despite limited evidence of bacterial infection.CONCLUSION: Influenza in southern Vietnam has complex transmission dynamics including periods of intense influenza activity of alternating types and subtypes. Broadening surveillance from hospital to the community in tropical settings is feasible and a valuable for improving our understanding of the global spread and evolution of the virus. This article is protected by copyright. All rights reserved.",
keywords = "epidemiology, human , influenza, primary health care, Vietnam",
author = "Stacy Todd and Huong, {Nguyen Thi Cam} and Thanh, {Nguyen Thi Le} and Vy, {Nguyen Ha Thao} and Hung, {Nguyen Thanh} and Thao, {Tran Thi Nhu} and Phuong, {Huynh Thi} and {van Doorn}, {H Rogier} and Hang, {V T Ty} and Chau, {Nguyen Van Vinh} and Read, {Jonathan M} and Lalloo, {David G} and Boni, {Maciej F}",
note = "This article is protected by copyright. All rights reserved.",
year = "2018",
month = sep,
doi = "10.1111/irv.12574",
language = "English",
volume = "12",
pages = "623--631",
journal = "Influenza and Other Respiratory Viruses",
issn = "1750-2640",
publisher = "Wiley-Blackwell",
number = "5",

}

RIS

TY - JOUR

T1 - Primary Care Influenza-like Illness Surveillance in Ho Chi Minh City, Vietnam 2013-2015

AU - Todd, Stacy

AU - Huong, Nguyen Thi Cam

AU - Thanh, Nguyen Thi Le

AU - Vy, Nguyen Ha Thao

AU - Hung, Nguyen Thanh

AU - Thao, Tran Thi Nhu

AU - Phuong, Huynh Thi

AU - van Doorn, H Rogier

AU - Hang, V T Ty

AU - Chau, Nguyen Van Vinh

AU - Read, Jonathan M

AU - Lalloo, David G

AU - Boni, Maciej F

N1 - This article is protected by copyright. All rights reserved.

PY - 2018/9

Y1 - 2018/9

N2 - BACKGROUND: Year-round transmission of influenza has been detected in Vietnam through both national surveillance and other epidemiological studies. Understanding the demographic and clinical features of influenza-like-illness (ILI) presenting to primary care in urban Vietnam is vital to understand these transmission dynamics.METHODS: A prospective, observational study of patients with ILI in Ho Chi Minh City, Vietnam was conducted between August 2013 and November 2015 in a mix of public and private primary care settings. Molecular testing for Influenza A & B and 12 other respiratory viruses was performed.RESULTS: 1152 ILI patients were recruited. 322 and 136 subjects tested positive for influenza A and B, respectively. 193 subjects tested positive for another respiratory virus; most commonly rhinovirus and parainfluenza virus 3. Influenza was detected in 81% of the 116 study weeks. Three peaks of influenza activity were detected; an H3N2 peak April-June 2014, an influenza B peak July-December 2014, and a mixed H3N2 and H1N1 peak March-September 2015. Subjects recruited from private clinics were more likely to have higher income, and to have reported previous influenza vaccination. Antibiotic use was common (50.3%) despite limited evidence of bacterial infection.CONCLUSION: Influenza in southern Vietnam has complex transmission dynamics including periods of intense influenza activity of alternating types and subtypes. Broadening surveillance from hospital to the community in tropical settings is feasible and a valuable for improving our understanding of the global spread and evolution of the virus. This article is protected by copyright. All rights reserved.

AB - BACKGROUND: Year-round transmission of influenza has been detected in Vietnam through both national surveillance and other epidemiological studies. Understanding the demographic and clinical features of influenza-like-illness (ILI) presenting to primary care in urban Vietnam is vital to understand these transmission dynamics.METHODS: A prospective, observational study of patients with ILI in Ho Chi Minh City, Vietnam was conducted between August 2013 and November 2015 in a mix of public and private primary care settings. Molecular testing for Influenza A & B and 12 other respiratory viruses was performed.RESULTS: 1152 ILI patients were recruited. 322 and 136 subjects tested positive for influenza A and B, respectively. 193 subjects tested positive for another respiratory virus; most commonly rhinovirus and parainfluenza virus 3. Influenza was detected in 81% of the 116 study weeks. Three peaks of influenza activity were detected; an H3N2 peak April-June 2014, an influenza B peak July-December 2014, and a mixed H3N2 and H1N1 peak March-September 2015. Subjects recruited from private clinics were more likely to have higher income, and to have reported previous influenza vaccination. Antibiotic use was common (50.3%) despite limited evidence of bacterial infection.CONCLUSION: Influenza in southern Vietnam has complex transmission dynamics including periods of intense influenza activity of alternating types and subtypes. Broadening surveillance from hospital to the community in tropical settings is feasible and a valuable for improving our understanding of the global spread and evolution of the virus. This article is protected by copyright. All rights reserved.

KW - epidemiology

KW - human

KW - influenza

KW - primary health care

KW - Vietnam

U2 - 10.1111/irv.12574

DO - 10.1111/irv.12574

M3 - Journal article

C2 - 29858879

VL - 12

SP - 623

EP - 631

JO - Influenza and Other Respiratory Viruses

JF - Influenza and Other Respiratory Viruses

SN - 1750-2640

IS - 5

ER -