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Article ; Online: After-action reviews for emergency preparedness and response to infectious disease outbreaks.

Quach, Ha-Linh / Nguyen, Khanh Cong / Vogt, Florian

Western Pacific surveillance and response journal : WPSAR

2023 Volume 14, Issue 1, Page(s) 1–8

MeSH term(s)	Humans ; Civil Defense ; Disease Outbreaks/prevention & control ; Disaster Planning
Language	English
Publishing date	2023-03-22
Publishing country	Philippines
Document type	Journal Article
ZDB-ID	2592503-9
ISSN	2094-7313 ; 2094-7313
ISSN (online)	2094-7313
ISSN	2094-7313
DOI	10.5365/wpsar.2023.14.1.953
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Mental Well-Being of Health Care Workers in Vietnam During the Fourth Wave of COVID-19 Pandemic: Impact of COVID-19 Exposure, Anxiety, and Resilience Capacity.

Hoang, Huong Xuan Thi / Quach, Ha-Linh / Nguyen, Trang Hong

Asia-Pacific journal of public health

2022 Volume 35, Issue 1, Page(s) 73–76

MeSH term(s)	Humans ; Vietnam/epidemiology ; Pandemics ; COVID-19 ; Anxiety/epidemiology ; Health Personnel ; Depression
Language	English
Publishing date	2022-11-02
Publishing country	China
Document type	Journal Article
ZDB-ID	1025444-4
ISSN	1941-2479 ; 1010-5395
ISSN (online)	1941-2479
ISSN	1010-5395
DOI	10.1177/10105395221136179
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Article ; Online: COVID-19 in Vietnam: A lesson of pre-preparation.

Quach, Ha-Linh / Hoang, Ngoc-Anh

Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology

2020 Volume 127, Page(s) 104379

Abstract: Background: Vietnam was slowing the spread of COVID-19 to 200 cases by the end of March. From perspective of a relatively vulnerable healthcare systems, timely interventions were implemented to different stage of pandemic progress to limit the spread.!## ...

Abstract	Background: Vietnam was slowing the spread of COVID-19 to 200 cases by the end of March. From perspective of a relatively vulnerable healthcare systems, timely interventions were implemented to different stage of pandemic progress to limit the spread. Method: The authors compiled literature on different public health measures in Vietnam in compared to the progression of COVID-19 from January to March 2020. Results: Three stages of pandemic progression of COVID-19 were recorded in Vietnam. At 213 confirmed cases under treatment and isolation, a range of interventions were enforced including intensive and expansive contact, mass testing, isolation, and sterilization. Many were in place before any case were reported. Conclusion: Preparation were key for Vietnam's healthcare system in the ever-changing landscape of COVID-19 pandemic.
MeSH term(s)	Betacoronavirus ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/prevention & control ; Health Planning/legislation & jurisprudence ; Health Planning/methods ; Health Planning/statistics & numerical data ; Humans ; Pandemics/prevention & control ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/prevention & control ; Public Health/legislation & jurisprudence ; Public Health/methods ; Public Health/statistics & numerical data ; Quarantine ; SARS-CoV-2 ; Vietnam/epidemiology
Keywords	covid19
Language	English
Publishing date	2020-04-22
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1446080-4
ISSN	1873-5967 ; 1386-6532
ISSN (online)	1873-5967
ISSN	1386-6532
DOI	10.1016/j.jcv.2020.104379
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Article ; Online: COVID-19 in Vietnam

Quach, Ha-Linh / Hoang, Ngoc-Anh

Journal of Clinical Virology

A lesson of pre-preparation

2020 Volume 127, Page(s) 104379

Keywords	Virology ; Infectious Diseases ; covid19
Language	English
Publisher	Elsevier BV
Publishing country	us
Document type	Article ; Online
ZDB-ID	1446080-4
ISSN	1873-5967 ; 1386-6532
ISSN (online)	1873-5967
ISSN	1386-6532
DOI	10.1016/j.jcv.2020.104379
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Article ; Online: University lecturers' perceived stress and self-rated health during COVID-19.

Quach, Ha-Linh / Do, Chi Lan Thi / Dang, Giap Xuan / Nguyen, Thang Manh / Le, Thang Cao / Nguyen, Ha Thu

Work (Reading, Mass.)

2023

Abstract: Background: In 2022, many universities transitioned from virtual learning back to in-person teaching. Significant changes in working conditions, along with COVID-19-related anxiety during the pandemic, might impact the well-being of lecturers.: ... ...

Abstract	Background: In 2022, many universities transitioned from virtual learning back to in-person teaching. Significant changes in working conditions, along with COVID-19-related anxiety during the pandemic, might impact the well-being of lecturers. Objective: This study aims to assess the perceived stress, self-rated physical and occupational health of Vietnamese lecturers in 2022 compared to the pre-pandemic levels, and to identify their associating factors. Method: This is a cross-sectional study conducted in May-June 2022 through an online survey questionnaire. A sample of 425 university lecturers were included. Participants' stress levels were assessed using the Perceived Stress Scale. Participants were asked to compare their current physical and occupational health with before the pandemic. Explanatory variables included (1) COVID-19 exposure; and (2) perceptions of changes in working environment due to the pandemic. Multivariable ordinal least squared regression analyses were used to estimate the coefficient and 95% confidence intervals for the associations between COVID-19 exposure variables, work conditions, and each outcome. Results: Our findings indicated that over 60% of participants experienced moderate stress, while nearly half reported worsened physical and occupational health during the pandemic. Gender, age, perceptions of workload, workplace safety, COVID-19 infection, and incentive programs were significant factors associated with higher stress levels and worse self-rated health. Conclusion: To ensure occupational safety and support lecturers as they return to in-person classes, it is crucial to provide appropriate psychological and health support services.
Language	English
Publishing date	2023-12-15
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1394194-x
ISSN	1875-9270 ; 1051-9815
ISSN (online)	1875-9270
ISSN	1051-9815
DOI	10.3233/WOR-230265
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Article: COVID-19 in Vietnam: A lesson of pre-preparation

Quach, Ha-Linh / Hoang, Ngoc-Anh

J Clin Virol

Abstract: BACKGROUND: Vietnam was slowing the spread of COVID-19 to 200 cases by the end of March. From perspective of a relatively vulnerable healthcare systems, timely interventions were implemented to different stage of pandemic progress to limit the spread. ... ...

Abstract	BACKGROUND: Vietnam was slowing the spread of COVID-19 to 200 cases by the end of March. From perspective of a relatively vulnerable healthcare systems, timely interventions were implemented to different stage of pandemic progress to limit the spread. METHOD: The authors compiled literature on different public health measures in Vietnam in compared to the progression of COVID-19 from January to March 2020. RESULTS: Three stages of pandemic progression of COVID-19 were recorded in Vietnam. At 213 confirmed cases under treatment and isolation, a range of interventions were enforced including intensive and expansive contact, mass testing, isolation, and sterilization. Many were in place before any case were reported. CONCLUSION: Preparation were key for Vietnam's healthcare system in the ever-changing landscape of COVID-19 pandemic.
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #102213
Database	COVID19

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Article ; Online: Assessing the robustness of COVID-19 vaccine efficacy trials: systematic review and meta-analysis, January 2023.

Hoang, Thi Ngoc Anh / Quach, Ha-Linh / Hoang, Van Ngoc / Tran, Van Thien / Pham, Quang Thai / Vogt, Florian

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

2023 Volume 28, Issue 22

Abstract: BackgroundVaccines play a crucial role in the response to COVID-19 and their efficacy is thus of great importance.AimTo assess the robustness of COVID-19 vaccine efficacy (VE) trial results using the fragility index (FI) and fragility quotient (FQ) ... ...

Abstract	BackgroundVaccines play a crucial role in the response to COVID-19 and their efficacy is thus of great importance.AimTo assess the robustness of COVID-19 vaccine efficacy (VE) trial results using the fragility index (FI) and fragility quotient (FQ) methodology.MethodsWe conducted a Cochrane and PRISMA-compliant systematic review and meta-analysis of COVID-19 VE trials published worldwide until 22 January 2023. We calculated the FI and FQ for all included studies and assessed their associations with selected trial characteristics using Wilcoxon rank sum tests and Kruskal-Wallis H tests. Spearman correlation coefficients and scatter plots were used to quantify the strength of correlation of FIs and FQs with trial characteristics.ResultsOf 6,032 screened records, we included 40 trials with 54 primary outcomes, comprising 909,404 participants with a median sample size per outcome of 13,993 (interquartile range (IQR): 8,534-25,519). The median FI and FQ was 62 (IQR: 22-123) and 0.50% (IQR: 0.24-0.92), respectively. FIs were positively associated with sample size (p < 0.001), and FQs were positively associated with type of blinding (p = 0.023). The Spearman correlation coefficient for FI with sample size was moderately strong (0.607), and weakly positive for FI and FQ with VE (0.138 and 0.161, respectively).ConclusionsThis was the largest study on trial robustness to date. Robustness of COVID-19 VE trials increased with sample size and varied considerably across several other important trial characteristics. The FI and FQ are valuable complementary parameters for the interpretation of trial results and should be reported alongside established trial outcome measures.
MeSH term(s)	Humans ; COVID-19 Vaccines ; COVID-19/prevention & control ; Randomized Controlled Trials as Topic
Chemical Substances	COVID-19 Vaccines
Language	English
Publishing date	2023-06-01
Publishing country	Sweden
Document type	Meta-Analysis ; Systematic Review ; Journal Article
ZDB-ID	1338803-4
ISSN	1560-7917 ; 1025-496X
ISSN (online)	1560-7917
ISSN	1025-496X
DOI	10.2807/1560-7917.ES.2023.28.22.2200706
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Article ; Online: Investigating COVID-19 transmission in a tertiary hospital in Hanoi, Vietnam using social network analysis.

Hoang, Ngoc-Anh Thi / Pham, Thai Quang / Quach, Ha-Linh / Hoang, Ngoc Van / Nguyen, Khanh Cong / Dang, Duc-Anh / Vogt, Florian

Tropical medicine & international health : TM & IH

2022 Volume 27, Issue 11, Page(s) 981–989

Abstract: Objectives: In March 2020, a COVID-19 outbreak in a major referral hospital in Hanoi, Vietnam led to 7664 patients and staff being sent into lockdown for 2 weeks, and more than 52,200 persons across 49 provinces being quarantined. We assessed SARS-CoV-2 ...

Abstract	Objectives: In March 2020, a COVID-19 outbreak in a major referral hospital in Hanoi, Vietnam led to 7664 patients and staff being sent into lockdown for 2 weeks, and more than 52,200 persons across 49 provinces being quarantined. We assessed SARS-CoV-2 transmission patterns during this to-date largest hospital outbreak in Vietnam using social network analysis (SNA). Methods: We constructed a directed relational network and calculated network metrics for 'degree', 'betweenness', 'closeness' and 'eigenvector' centrality to understand individual-level transmission patterns. We analysed network components and modularity to identify sub-network structures with disproportionately big effects. Results: We detected 68 connections between 46 confirmed cases, of whom 27 (58.7%) were ancillary support staff, 7 (15.2%) caregivers, 6 (13%) patients and 2 (4.4%) nurses. Among the 10 most important cases selected by each SNA network metric, transmission dynamics clustered in 17 cases, of whom 12 (70.6%) cases were ancillary support staff. Ancillary support staff also constituted 71.1% of cases in the dominant sub-network and 68.8% of cases in the three largest sub-communities. Conclusions: We identified non-clinical ancillary support staff, who are responsible for room service and food distribution in hospital wards in Vietnam, as a group with disproportionally big impacts on transmission dynamics during this outbreak. Our findings call for a holistic approach to nosocomial outbreak prevention and response that includes both clinical and non-clinical hospital staff. Our work also shows the potential of SNA as a complementary outbreak investigation method to better understand infection patterns in hospitals and similar settings.
MeSH term(s)	Humans ; COVID-19/epidemiology ; SARS-CoV-2 ; Tertiary Care Centers ; Vietnam/epidemiology ; Social Network Analysis ; Communicable Disease Control ; Disease Outbreaks/prevention & control
Language	English
Publishing date	2022-10-11
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1314080-2
ISSN	1365-3156 ; 1360-2276
ISSN (online)	1365-3156
ISSN	1360-2276
DOI	10.1111/tmi.13822
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Article ; Online: Assessing the mental effects of COVID-19-related work on depression among community health workers in Vietnam.

Hoang, Ngoc-Anh / Van Hoang, Ngoc / Quach, Ha-Linh / Nguyen, Khanh Cong / Duong, Luong Huy / Pham, Thai Quang / Vogt, Florian

Human resources for health

2022 Volume 20, Issue 1, Page(s) 64

Abstract: Background: Community health workers (CHWs) involved in the COVID-19 response might be at increased risk of developing depression, though evidence is scarce. We investigated effects of COVID-19-related work on changes in depression levels among CHWs in ... ...

Abstract	Background: Community health workers (CHWs) involved in the COVID-19 response might be at increased risk of developing depression, though evidence is scarce. We investigated effects of COVID-19-related work on changes in depression levels among CHWs in Vietnam and identified sub-groups among CHWs who are at particular risk of developing severe depression. Methods: We conducted a cross-sectional online survey among 979 CHWs who were involved in the COVID-19 response in Vietnam, in particular during the 2021 Tet holiday outbreak between January and March 2021. Respondents were asked to report depression symptoms at two-time points, before the start of the COVID-19 pandemic (average June to December 2019) and during the 2021 Tet holiday outbreak using the PHQ-9 mental health questionnaire. We estimated depression levels at both time points and developed univariate and multivariable logistic regression models to estimate odds ratios and 95% confidence intervals (95% CIs) to explore the association between deterioration to high depression levels and selected risk factors. Results: Median depression levels among CHWs in Vietnam doubled from 3 (IQR = 2-7) before COVID-19 to 6 (IQR = 3-9) on the PHQ-9 scale during the Tet holiday outbreak. The proportion with normal/minimal levels decreased from 77.1% (95% CI = 74.4-79.7) to 50.9% (95% CI = 47.7-54) (p-value < 0.001), while the proportion of CHWs with moderate, moderately severe, and severe depression levels increased 4.3, 4.5, and five-fold, respectively. Less sleep and poor sleep quality, working in unfavorable work environments, and being involved in contact tracing and the organization of quarantine for suspected cases were associated with an increased risk of deterioration to high depression levels. Conclusions: We found a substantial increase in overall depression levels among CHWs in Vietnam due to their COVID-19 related work and a particularly worrisome rise in CHWs suffering from severe depression. CHWs are an indispensable yet often overlooked cadre of work in many low- and middle-income countries and shoulder a heavy psychological burden during the COVID-19 pandemic. Targeted psychological support for CHWs is needed to improve their mental health and to ensure the sustainability of community-based health interventions during COVID-19 and future epidemics.
MeSH term(s)	COVID-19/epidemiology ; Community Health Workers ; Cross-Sectional Studies ; Depression/epidemiology ; Depression/etiology ; Humans ; Pandemics ; SARS-CoV-2 ; Vietnam/epidemiology
Language	English
Publishing date	2022-08-19
Publishing country	England
Document type	Journal Article
ZDB-ID	2126923-3
ISSN	1478-4491 ; 1478-4491
ISSN (online)	1478-4491
ISSN	1478-4491
DOI	10.1186/s12960-022-00760-x
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Article ; Online: Evaluating Epidemic Preparedness and Response to COVID-19: A Nation-Wide Multisectorial Intra-Action Review of the Points of Entry Surveillance System in Vietnam, January to September 2020.

Hoang, Ngoc Van / Hoang, Ngoc-Anh / Pham Quang, Thai / Quach, Ha-Linh / Nguyen, Khanh Cong / Vu, Long Ngoc / Hoang, Duc Minh / Field, Emma / Vogt, Florian

Asia-Pacific journal of public health

2022 Volume 34, Issue 6-7, Page(s) 702–704

MeSH term(s)	COVID-19 ; Epidemics ; Humans ; SARS-CoV-2 ; Vietnam/epidemiology
Language	English
Publishing date	2022-07-14
Publishing country	China
Document type	Journal Article
ZDB-ID	1025444-4
ISSN	1941-2479 ; 1010-5395
ISSN (online)	1941-2479
ISSN	1010-5395
DOI	10.1177/10105395221112863
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