Last data update: May 20, 2024. (Total: 46824 publications since 2009)
Records 1-4 (of 4 Records) |
Query Trace: Ha NT [original query] |
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Burden of influenza-associated respiratory hospitalizations, Vietnam, 2014-2016
Khanh NC , Fowlkes AL , Nghia ND , Duong TN , Tu NH , Tu TA , McFarland JW , Nguyen TTM , Ha NT , Gould PL , Thanh PN , Trang NTH , Mai VQ , Thi PN , Otsu S , Azziz-Baumgartner E , Anh DD , Iuliano AD . Emerg Infect Dis 2021 27 (10) 2648-2657 Influenza burden estimates are essential to informing prevention and control policies. To complement recent influenza vaccine production capacity in Vietnam, we used acute respiratory infection (ARI) hospitalization data, severe acute respiratory infection (SARI) surveillance data, and provincial population data from 4 provinces representing Vietnam's major regions during 2014-2016 to calculate provincial and national influenza-associated ARI and SARI hospitalization rates. We determined the proportion of ARI admissions meeting the World Health Organization SARI case definition through medical record review. The mean influenza-associated hospitalization rates per 100,000 population were 218 (95% uncertainty interval [UI] 197-238) for ARI and 134 (95% UI 119-149) for SARI. Influenza-associated SARI hospitalization rates per 100,000 population were highest among children <5 years of age (1,123; 95% UI 946-1,301) and adults >65 years of age (207; 95% UI 186-227), underscoring the need for prevention and control measures, such as vaccination, in these at-risk populations. |
A case study of an influenza vaccination program for health care workers in Vietnam
Ha NT , Nguyen TTM , Nguyen TX , Tran PD , Nguyen HM , Ha VT , Lafond KE , Seward JF , McFarland JW , Chu SY . BMC Health Serv Res 2020 20 (1) 785 BACKGROUND: In 2017, the Vietnam Ministry of Health conducted a demonstration project to introduce seasonal influenza vaccination to health care workers. A total of 11,000 doses of influenza vaccine, single-dose prefilled syringes, were provided free to HCWs at 29 selected hospitals, clinics, and research institutes in four provinces: Hanoi, Khanh Hoa, Dak Lak and Ho Chi Minh City. METHODS: Before the campaign, a workshop was organized to discuss an implementation plan including technical requirements, cold chain, uptake reporting, and surveillance for adverse events following immunization. All sites distributed communication materials and encouraged their staff to register for vaccination. Following immunization sessions, sites sent reports on uptake and adverse events following immunization. Left-over vaccine was transferred to other sites to maximize vaccine use. RESULTS: The average uptake was 57% for all health care workers, with 11 sites achieving 90% and above. These 11 sites were small with less than 500 staff, including 5 primary hospitals, 3 preventive medicine units, and 2 referral hospitals. Among the six biggest sites with over 1000 staff, four sites had the lowest uptake (14-47%). Most of the high-uptake sites were from the central to the south; only one site, a referral hospital, was from the north. After redistribution of left-over vaccine, only 130 vaccine doses (1.2%) were not used and destroyed. Based on factors that affected uptake, including registration levels, differing communication strategies, availability of vaccination, and commitment by health facility leaders, we recommended ways to increase health care worker coverage; recommendations to improve reporting adverse events following immunization were also made. CONCLUSIONS: The project demonstrated that it was feasible to conduct influenza vaccination campaigns among health care workers in Vietnam. Improvements in promotion of registration, more intense pre-planning, especially at larger facilities, and wider, more consistent availability of communication materials will result in increased efficiency and coverage in this program's future expansion. |
Acceptability of seasonal influenza vaccines among health care workers in Vietnam in 2017
Nguyen TTM , Lafond KE , Nguyen TX , Tran PD , Nguyen HM , Ha VTC , Do TT , Ha NT , Seward JF , McFarland JW . Vaccine 2020 38 (8) 2045-2050 INTRODUCTION: A demonstration project in Vietnam provided 11,000 doses of human seasonal influenza vaccine free of charge to healthcare workers (HCWs) in 4 provinces of Vietnam. Through this project, we conducted an acceptability survey to identify the main reasons that individuals chose to be vaccinated or not to inform and improve future immunization activities. METHODS: We conducted a descriptive cross-sectional survey from May to August 2017 among HCWs at 13 selected health facilities. We employed logistic regression to determine the association between demographic and professional factors, and the decision to receive seasonal influenza vaccine. We performed post-hoc pairwise comparisons among reasons for and against vaccination using Chi square and Fisher's exact tests (for cell sizes <5). RESULTS: A total of 1,450 HCWs participated in the survey, with a higher proportion of females than males (74% versus 26%). The median age of the participating HCWs was 35 years (median range 25.8-44.2). Among those surveyed, 700 (48%) HCWs were vaccinated against seasonal influenza during the first half of 2017. Younger HCWs under 30 and 30-39 years old were less likely to get vaccinated against seasonal influenza than HCWs >/=50 years old (OR = 0.5; 95%CI 0.4-0.8 and OR = 0.6; 95%CI 0.4-0.8 respectively). Nurses and other employees were more likely to get seasonal influenza vaccination than physicians (OR = 1.5; 95%CI 1.0-2.4 and OR = 2.0; 95%CI 1.2-3.2 respectively). The most common reason for accepting vaccination was fear of getting influenza (66%) and the most common reason for not getting vaccinated was concern about vaccine side effects (23%). CONCLUSION: Acceptability of seasonal influenza vaccines in this setting varied among HCWs by age group and job category. Interventions to increase acceptance of vaccine among HCWs in this setting where influenza vaccine is being introduced free for the first time should include targeted risk communication on vaccine safety and efficacy. |
Changes in motorcycle-related injuries and deaths after mandatory motorcycle helmet law in a district of Vietnam
Ha NT , Ederer D , Vo Ha VA , Van Pham A , Mounts A , Nolen L , Sugerman D . Traffic Inj Prev 2017 19 (1) 0 OBJECTIVE: Our study measured the change in head injuries and deaths among motorcycle users in Cu Chi district, a suburban district of Ho Chi Minh City. METHODS: Hospital records for road traffic injuries (RTI) were collected from the Cu Chi Trauma Centre and motorcycle-related death records were obtained from mortality registries in commune health offices. Head injury severity was categorised using the Abbreviated Injury Score (AIS). Rate ratios (RR) were used to compare rates pre- and post-law (2005/06-2009/10). Cu Chi's population, stratified by year, age, and sex was used as the denominator. RESULTS: Of records identifying the transportation mode at the time of injury, motorcyclists accounted for most injuries (3,035, 87%) and deaths (238, 90%). Head injuries accounted for 70% of motorcycle-related hospitalisations. Helmet use was not recorded in any death records and not in 97% of medical records. Males accounted for most injuries (73%) and deaths (88%). The median age was 28 years and 32 years for injuries and deaths, respectively. Compared to the pre-law period, rates of motorcycle injuries (RR 0.53; 95% CI 0.49-0.58), head injuries (RR 0.35; 95% CI 0.31-0.39), severe head injuries (RR 0.47; 95% CI 0.34-0.63) and deaths (RR 0.69; 95% CI 0.53-0.89) significantly decreased in the post-law period. CONCLUSIONS: Rates of head injuries and deaths among motorcycle riders decreased significantly after implementation of the mandatory helmet law in Vietnam. To further examine the impact of the motorcycle helmet law, including compliance and helmet quality, further emphasis should be placed on gathering helmet use data from injured motorcyclists. |
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