1.Immunoresponse after immunization of Vaccine of Japanese encephalitis at various doses that produced by Hanoi National Institute of Hygiene and Epidemiology
Journal of Medical and Pharmaceutical Information 2001;4():25-28
262 children aged 6-14 years old were randomly divided into 4 groups receiving different vaccine doses of 1ml; 0,75ml; 0,1 ml. After the interval of one week between two injections the results showed that antibody response manifested effectively on all 4 groups.
Japanese Encephalitis Vaccines
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Immunization
2.Epidemiological survey on Japanese encephalitis in children at Hai Phong city, 1990-2000
Journal of Preventive Medicine 2004;14(2):37-40
Result of the retrospective survey in 720 patients of Japanese encephalitis (JE) during 1990-2000 in Hai Phong Children's Hospital was showed that: age group from 5 to 9 was 51.5%, under 5 ages 29.9% and from 10-15 ages was 19.6%. The age groups of under 5, 5-9 and 10-15 years old were 28.9%, 51.5% and 19.6%, respectively. The prevalence in the rural area was higher than these in urban area. The morbidity occurred mainly in May-June. 67.8% (99/146) were detected positive by using MAC-ELISA
Epidemiology
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Encephalitis, Japanese
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child
3.Side effects of Japanese encephalitis (JE) vaccine produced in Vietnam with different vaccinated doses
Journal of Preventive Medicine 2004;14(2):41-44
320 healthy pupils were examined at two primary school and secondary school in Tan Tien commune, An Hai district, Hai Phong city, among them 257 pupils were selected. Those pupils were divided randomly into 4 groups. There was the age from 6 to 14 in each group. JE vaccine produced by National Institute of Hygiene and Epidemiology, Hanoi was vaccinated three times: first dose and second dose with a week interval, third dose a year after with different doses: 1ml, 0.75ml, 0.5ml and 0.1ml, for children of age from 6 to 14. The side effect mainly was slight pain on the injection's spot. Almost of cases had slight fever (< 380C), during only 1-2 days after injection
Japanese Encephalitis Vaccines
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adverse effects
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epidemiology
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Pupil
;
child
4.Safety of Balloon Kyphoplasty in the Treatment of Thoracic Osteoporotic Vertebral Compression Fractures in Vietnamese Patients
Dinh-Hoa NGUYEN ; Duc-Dat VU ; Thi-Ngoc-Ha DOAN ; Hoang-Long VO
Clinics in Orthopedic Surgery 2020;12(2):209-216
Background:
The evidence for the efficacy and safety of balloon kyphoplasty (BKP) in treating the Vietnamese patients is sparse. There is no convincing evidence regarding BKP’s efficacy in Vietnamese patients, especially in the patients with thoracic osteoporotic vertebral compression fractures (VCFs). This article aims to evaluate the outcomes of restoring the body height of the compressed thoracic vertebrae in patients undergoing BKP.
Methods:
We prospectively enrolled 65 consecutive patients with thoracic VCFs (73 vertebrae) due to osteoporosis who were treated with BKP between June 2018 and May 2019.
Results:
A trocar was inserted through the pedicle in 84.9% (62/73) and beside the pedicle in 15.1% (11/73). The mean amount of mixed cement injected was 4.1 ± 1.1 mL (range, 1.5–7 mL). Cement leakage was radiographically confirmed in 30.8% of 65 patients. Among patients with complications caused by cement extravasation, the leakage was through the anterior margin of the vertebrae in 15.4%, through the vertebral disc in 12.3%, and through the posterior margin of the vertebrae in 3.1%. In the last 3.1% of patients, there was no clinically notable lesions of the nerve roots or spinal cord. The mean visual analog scale score decreased significantly from 7.3 ± 1.1 preoperatively to 3.3 ± 0.6 at 24 hours after surgery, and then to 1.2 ± 1.1 at 3 months after surgery (p < 0.01). The mean reduction in Cobb angle measured on standing radiographs after treatment was 3.7°, showing statistical significance (p < 0.01).
Conclusions
BKP is a minimally invasive treatment effective for immediate pain relief, early motor rehabilitation, and humpback correction. The present study provided convincing evidence to support the use of BKP by spine surgeons and clinical specialists in treating osteoporotic thoracic VCFs in Vietnamese patients.
5.Using Online Respondent Driven Sampling for Vietnamese Youths' Alcohol Use and Associated Risk Factors.
Melvyn W B ZHANG ; Bach Xuan TRAN ; Huong Lan Thi NGUYEN ; Huong Thi LE ; Nguyen Hoang LONG ; Huong Thi LE ; Nguyen Duc HINH ; Tran Dinh THO ; Bao Nguyen LE ; Vu Thi Minh THUC ; Chau NGO ; Nguyen Huu TU ; Carl A LATKIN ; Roger CM HO
Healthcare Informatics Research 2017;23(2):109-118
OBJECTIVES: The average alcohol consumption per capita among Vietnamese adults has consistently increased. Although alcohol-related disorders have been extensively studied, there is a paucity of research shedding light on this issue among Internet users. The study aimed to examine the severity of alcohol-related disorders and other associated factors that might predispose individuals towards alcohol usage in a sample of youths recruited online. METHODS: An online cross-sectional study was conducted with 1,080 Vietnamese youths. A standardized questionnaire was used. Respondent-driven sampling was applied to recruit participants. Multivariate logistic and Tobit regressions were utilized to identify the associated factors. RESULTS: About 59.5% of the males and 12.7% of the total youths declared that they were actively using alcohol. From the total sample, a cumulative total of 32.3% of the participants were drinking alcohol, with 21.8% and 25.0% of the participants being classified as drinking hazardously and binge drinkers, respectively. The majority of the participants (60.7%) were in the pre-contemplative stage. CONCLUSIONS: A high prevalence of hazardous drinking was recognized among online Vietnamese youths. In addition, we found relationships between alcohol use disorder and other addictive disorders, such as tobacco smoking and water-pipe usage. Our results highlighted that the majority of the individuals are not receptive to the idea of changing their alcohol habits, and this would imply that there ought to be more government effort towards the implementation of effective alcohol control policies.
Adolescent
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Adult
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Alcohol Drinking
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Alcohol-Related Disorders
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Asian Continental Ancestry Group*
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Cross-Sectional Studies
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Drinking
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Humans
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Internet
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Male
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Prevalence
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Risk Factors*
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Smoking
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Surveys and Questionnaires*
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Vietnam
6.Virological characteristics of cases of COVID-19 in northern Viet Nam, January–May 2020
Hang Khanh Le Nguyen ; Son Vu Nguyen ; Phuong Mai Vu Hoang ; Thanh Thi Le ; Huong thi Thu Tran ; Long Hai Pham Nguyen ; Thai Quang Pham ; Thuy Thanh Nguyen ; Anh Duc Dang ; Anh Phuong Nguyen ; Mai thi Quynh Le
Western Pacific Surveillance and Response 2021;12(4):65-70
Background:
Viet Nam confirmed its first case of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on 23 January 2020 among travellers from Wuhan, China, and experienced several clusters of community transmission until September. Viet Nam implemented an aggressive testing, isolation, contact tracing and quarantine strategy in response to all laboratory-confirmed cases. We report the results of SARS-CoV-2 testing during the first half of 2020 in northern Viet Nam.
Methods:
Between January and May 2020, 15 650 upper respiratory tract specimens were collected from 14 470 suspected cases and contacts in northern Viet Nam. All were tested for SARS-CoV-2 by real-time RT-PCR. Individuals with positive specimens were tested every three days until two tests were negative. Positive specimens from 81 individuals were cultured.
Results:
Among 14 470 tested individuals, 158 (1.1%) cases of SARS-CoV-2 infection were confirmed; 89 were imported and 69 were associated with community transmission. Most patients (122, 77%) had negative results after two tests, while 11 and 4 still tested positive when sampled a third and fourth time, respectively. SARS-CoV-2 was isolated from 29 of 81 specimens (36%) with a cycle threshold (Ct) value <30. Seven patients who tested positive again after testing negative had Ct values >30 and negative cultures.
Conclusion
Early, widespread testing for SARS-CoV-2 in northern Viet Nam identified very few cases, which, when combined with other aggressive strategies, may have dramatically contained the epidemic. We observed rapid viral clearance and very few positive results after clearance. Large-scale molecular diagnostic testing is a critical part of early detection and containment of COVID-19 in Viet Nam and will remain necessary until vaccination is widely implemented.