Animal Reservoir Hosts and Fish-borne Zoonotic Trematode Infections on Fish Farms, Vietnam

Fish-borne zoonotic trematodes (FZT) pose a risk to human food safety and health and may cause substantial economic losses in the aquaculture industry. In Nghe An Province, Vietnam, low prevalence of FZT for fish farmers but high prevalence for fish indicate that reservoir hosts other than humans may play a role in sustaining transmission. To determine whether domestic animals may be reservoir hosts, we assessed prevalence and species composition of FZT infections in dogs, cats, and pigs in a fish-farming community in Vietnam. Feces from 35 cats, 80 dogs, and 114 pigs contained small trematode eggs at 48.6%, 35.0%, and 14.4%, respectively; 7 species of adult FZT were recovered from these hosts. These results, combined with data from previous investigations in this community, imply that domestic animals serve as reservoir hosts for FZT and therefore must be included in any control programs to prevent FZT infection in humans.     

The prevalence of epilepsy in a rural district of Vietnam: a population-based study from the EPIBAVI project

SUMMARY: A field survey was carried out to determine the prevalence of active epilepsy in northern Vietnam between January and December 2005, when members of approximately 13,000 households were screened for seizure disorders. A clinical examination of all screened positive was performed by a neurologist to verify the epilepsy diagnosis, and all epilepsy cases were offered an EEG. Out of 47,269 screened, 1,338 (2.8%) had a positive response to the questionnaire. Of these, 206 fulfilled the criteria for active epilepsy, yielding a prevalence of 4.4 per 1,000 (95% CI 3.8-5.0), higher among males (5.1) than females (3.7), among those with lower compared with higher education and among single compared with those married. Only 20.6% were seizure-free the year before the examination. The prevalence of active epilepsy in Vietnam is similar to some other Asian countries but lower than in developing countries from Africa and South America.     

Trauma, PTSD, and physical health: an epidemiological study of Australian Vietnam veterans

OBJECTIVE: This study aimed to examine the relative contributions to physical health of combat trauma exposure and posttraumatic stress disorder (PTSD), which have both been implicated separately in poorer physical health but whose unconfounded effects have not been teased out. METHODS: Data from an epidemiological study of Australian Vietnam veterans, which used personal interviews and standardized physical and psychiatric health assessments, provided the means to assess the independent and joint effects of psychological trauma exposure and PTSD on a wide range of self-reported measures of physical health. Trauma exposure was measured by published scales of combat exposure and peritraumatic dissociation. Logistic regression modeling was used to assess the relative importance of trauma exposure and PTSD to health while controlling for a set of potential confounders including standardized psychiatric diagnoses. RESULTS: Greater health service usage and more recent health actions were associated more strongly with PTSD, which was also associated with a range of illness conditions coded by the World Health Organization International Classification of Diseases, 9th Edition (asthma, eczema, arthritis, back and other musculoskeletal disorders, and hypertension) both before and after controlling for potential confounders. In contrast, combat exposure and peritraumatic dissociation were more weakly associated with a limited number of unconfounded physical health outcomes. CONCLUSIONS: This study provided evidence that PTSD, rather than combat exposure and peritraumatic dissociation, is associated with a pattern of physical health outcomes that is consistent with altered inflammatory responsiveness.     

Quality of antiepileptic drugs in Vietnam

The purpose of this research was to evaluate the quality of anti-epileptic drugs (AEDs) in a central city of South Vietnam. A cross-sectional study was conducted in all the outlets for AEDs. Out of 33 pharmacies 54% had AEDs. Where the drugs were available, 89% of the pharmacies, 10 units were purchased, choosing the cheapest ones. The information on the packaging, the galenic form and the aspect of the drug were studied. Each sample's tablet was weighted and was considered satisfactory if it was within +/-10% of the average. A HPLC method was used for dosing the active ingredient (AI), which was considered satisfactory within +/-10% of the theoretical value. Eight samples were based on carbamazepin and eight on phenytoin. None of the 16 samples collected were past their expiring date. Tablets were homogeneous in shape, dimension and color. The uniformity of weight was satisfactory but the AI results were alarming for Carbamazepin and more often for Phenytoin. Only 35% of the tablets were correctly dosed. Because of differences of sensitivities of AEDs to storage conditions, environmental factors (heat, light and humidity) could be responsible for this result. Best results were achieved in structures where storage seemed to be better. The influence of storage conditions must be further studied to confirm this conclusion.     

中越卫生合作需求与策略

目的:通过分析越南的卫生合作需求,提出中越卫生合作的策略建议。方法:通过二手资料收集和定性访谈,收集健康相关可持续发展目标(SDG)数据、越南卫生发展规划、国际组织对越援助以及中越卫生合作现况。结果:越南以SDG为基础,规划优先发展领域。国际组织对越南卫生发展起到重要作用,但随着越南的经济发展,部分组织开始撤资。中越目前主要在多边合作框架下开展卫生合作,合作内容涉及卫生安全、卫生发展和医学创新。结论:中越卫生合作应根据两国卫生发展水平、卫生合作基础及国家发展规划决定合作的领域和方式。两国的卫生合作应随双方的发展进程和需求变化而动态调整。除了中越两国的资源,其他国际资源的有效利用也有助于卫生合作的推进。     

Odor-induced EEG changes in PTSD Vietnam veterans

Electroencephalogram (EEG) changes in response to trauma and non-traumarelated odors were examined in five Vietnam veterans with a DSM-III-R diagnosis of Post-traumatic Stress Disorder (PTSD) and in five Vietnam veterans with adjustment-related problems (non-PTSD). Period analysis of the EEG indicated that the odors differentially affected the PTSD group's theta and alpha activity compared to the non-PTSD group. The greatest EEG and self-report odor and PTSD effects were found in response to a trauma odor which simulated burning flesh. These findings have important implications in the detection of veterans who attempt to feign deliberately the psychophysiological response pattern associated with PTSD.     

Quality of life,depression and correlates in HIV+ people at An Hoa Clinic,Ho Chi Minh City

This study investigated correlates of quality of life (QOL) among people living with HIV/AIDS (PLWH) at An Hoa Clinic, Ho Chi Minh City, Vietnam. Inclusive criteria were PLWH ≥18 years old, under antiretroviral therapy (ART) for ≥3 months, and consent to participate. PLWH who were illiterate, too ill, or at the final stage of AIDS were excluded. QOL was assessed using WHOQOL-BREF-HIV. Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale. For every point increased in depression score, QOL decreased 0.13 points in Physical (p?<?.001), 0.12 points in Psychological and Social Relationships (p?<?.001), 0.07 points in Level of Independence (p?<?.001), 0.09 points in Environment (p?<?.001), and 0.15 points in Personal Beliefs domain (p?<?.001). PLWH from an economically disadvantaged household had lower QOL scores for all QOL domains but Personal Beliefs with differences ranging from 0.81 points for Social Relationships to 1.77 points for Environment domain. PLWH with a co-morbidity had lower scores whereas those living with a spouse and adhering to ART medication had higher scores in at least one QOL domain. In conclusion, depressive symptoms, household economy, living with a spouse, having a co-morbidity and ART medication adherence were important factors associated with PLWH’s QOL.     

Single and Combinative Impacts of Healthy Eating Behavior and Physical Activity on COVID-19-like Symptoms among Outpatients: A Multi-Hospital and Health Center Survey

Background: Healthy eating and physical activity are effective non-pharmacological approaches to boost immune function and contain the pandemic. We aimed to explore the associations and interactions between physical activity and healthy eating behavior with COVID-19-like symptoms (Slike-CV19S). Methods: A cross-sectional study was conducted on 3947 outpatients, from 14 February to 2 March 2020, at nine health facilities in Vietnam. Data collection included sociodemographic characteristics, healthy eating behavior (using the healthy eating score (HES) questionnaire), physical activity (using the short form international physical activity questionnaire), and Slike-CV19S. The associations and interactions were tested using logistic regression models. Results: Frequent intake of fruits (OR = 0.84; p = 0.016), vegetables (OR = 0.72; p = 0.036), and fish (OR = 0.43; p < 0.001) were associated with a lower Slike-CV19S likelihood, as compared with infrequent intake. Patients with higher HES levels (OR = 0.84; p = 0.033 for medium HES; OR = 0.77; p = 0.006 for high HES) or being physically active (OR = 0.69; p < 0.001) had a lower Slike-CV19S likelihood, as compared to those with low HES or physical inactivity, respectively. Patients with medium HES who were physically active (OR = 0.69; p = 0.005), or with high HES and physically active (OR = 0.58; p < 0.001), had a lower Slike-CV19S likelihood, as compared to those with low HES and physical inactivity. Conclusions: Healthy eating behavior and physical activity showed single and combinative impacts on protecting people from Slike-CV19S. Strategic approaches are encouraged to improve healthy behaviors, which may further contribute to containing the pandemic.     

Changes in the nasal carriage of drug-resistant Streptococcus pneumoniae in urban and rural Vietnamese schoolchildren

Studying the antimicrobial drug resistance of nasopharyngeal or nasal carriage isolates of Streptococcus pneumoniae in children is likely to have predictive potential for invasive isolates. Streptococcus pneumoniae nasal carriage was studied in 1422 Vietnamese children. Forty-six percent of 536 isolates showed reduced susceptibility to penicillin and 7% showed intermediate susceptibility to ceftriaxone; and 50% of 518 isolates showed resistance to erythromycin. All isolates were sensitive to levofloxacin and gatifloxacin. Urban and suburban children were significantly more likely to carry drug-resistant isolates than rural children. Rates of non-susceptibility to penicillin and erythromycin increased significantly in the rural province Khanh Hoa in 2003/2004 compared with rates obtained in 1997. An emerging clone of penicillin non-susceptible S. pneumoniae of serogroup 15 was identified, which was widely distributed in addition to the pandemic clones Spain(23F)-1 and Taiwan(19F)-14. Although resistance to fluoroquinolones was not observed, 6 (18%) of 34 isolates had a Lys137Asn mutation in the parC gene. This study shows that drug resistance is increasing in carriage isolates of S. pneumoniae in rural areas in Vietnam owing to spread of pandemic and emerging resistant clones.     

Association between dioxin concentrations in breast milk and food group intake in Vietnam

Objectives

To clarify the association between dioxin concentrations in breast milk and food group intake in herbicide-sprayed and nonsprayed areas in Vietnam.

Methods

This survey was conducted in August 2007 in sprayed and nonsprayed areas, respectively. The interviews were performed using a questionnaire to obtain information on personal characteristics and usual dietary intake. Eighty mothers of sprayed area and 42 mothers of nonsprayed area participated in the study. Breast milk was analyzed for concentration of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs).

Results

Multiple regression analysis showed that location (sprayed or nonsprayed area) has the highest association with the toxic equivalents (TEQ)-PCDDs, TEQ-PCDFs, and TEQ-Total rather than other factors. In the sprayed area, the adjusted R ² values of regression were approximately 0.1. On the other hand, the adjusted R ² values in the nonsprayed areas were higher than those in the sprayed area, i.e., between 0.2 and 0.3, and showed that there were significant associations with body mass index (BMI) in all models.

Conclusions

Dioxin exposure was less affected by usual dietary intake in the sprayed area than in the nonsprayed area in Vietnam. It was clear that past exposure rather than present dietary intake may affect present dioxin concentrations in breast milk in the sprayed area in Vietnam. This study suggests that present dioxin concentrations in breast milk were maintained by continuous past exposure even after 30–40 years had passed.