Over the past few years, malaria situation in Hue province, particularly in Nam Dong and Phu Loc districts, has been improved due to the effective malaria control measures. The number of malaria cases, complicated cases and deaths was obviously reduced. Malaria outbreaks were controlled. These results have exceed the expected targets. However, there is a risk of resurgence of malaria due to the unstable social and natural factors. According to the survey data in 2001-2004, malaria cases in two districts of Nam Dong and Phu Loc were annually reduced. In 2003-2004, no malaria in pregnant women and children under five years old was found in both of these districts. The imported malaria patients have been reduced but still remained (accounted for 46.34 % of the total malaria cases in Nam Dong and 100% in Phu Loc) and this may have bad effects on the stable malaria situation. In order to sustain the malaria control
Malaria ; Disease Outbreaks

The study was carried out on 1328 pupils aged of 6-15 years in Xuan Bac primary and Xuan Ngoc secondary school, Xuan Truong district, Namdinh province in 2002 ( males were 69, females were 638). The results showed some anthropometric measurements and clinical examinations. The following conclusion have been drawn:- Physical status: The anthropometric of Xuan Bac and Xuan Ngoc school children were considerably higher than those of 1975 Vietnamese biological constant and those of Thai binh province in 1995; but these indices were lower than index of Duong Nghiep Chi in 2001. – Morbidity: The general morbidity rate:38.62%. Four commonest disease in the Xuan Truong School (6-15 years old) were dento-oral disease (28.46%), ear-nose-throat diseases(7.75%),goiter diseases (2.43%) and myopia (2.03%)
Health Physics ; child ; Biological Markers

Background: In Vietnam, Dengue Fever/Dengue Haemorrhagic Fever (DF/DHF) is one of ten contagious diseases causing epidemics with the highest prevalence.\r\n', u'Objectives: To describe some characteristics of DF/DHF epidemic in Khanhhoa province in 2005. \r\n', u'Subjects and methods: The descriptive study based on available data obtained from the surveillance reporting system.\r\n', u'Results: Total reported cases were: 5.365 (morbidity rate = 469.58 per 100.000) and 4 deaths (CFR = 0,074%).446 of 1.661 Mac Elisa tested cases were positives (positively = 26.9%). The positive cases in male were higher than that in female. Almost all of the positive cases were less than 15 years of age. Virus serotype D1 and D2 were isolated in the epidemic. 5 of 7 districts (except 2 mountainous districts) had outbreaks. The epidemic started in April and stopped in December. Ninhhoa district was the first location of the outbreak and Vanninh district was the last one. Geographical distribution of the epidemic was as follows: costal communes=54.6%, delta communes = 30.3%, urban communes =15.1%. The epidemic level was medium (>20% - <50% of communes having the epidemic). "Pilot intervention communes" had 4 times the higher risk of DF/DHF than "non pilot intervention communes". \r\n', u'Conclusions: IEC activities for preventing DF/DHF should be strengthened. For maintaining the low mosquito and breutau index, we need routine preventive actions. Authorities need to consider and to consolidate the activities of Pilot intervention communes. Coastal communes should be supplied with running water. \r\n', u'\r\n', u'
dengue fever/dengue haemorrhagic fever ; epidemic

Objective: In Viet Nam, tuberculosis (TB) prevalence surveys revealed that approximately 98% of individuals with pulmonary TB have TB-presumptive abnormalities on chest radiographs, while 32% have no TB symptoms. This prompted the adoption of the “Double X” strategy, which combines chest radiographs and computer-aided detection with GeneXpert testing to screen for and diagnose TB among vulnerable populations. The aim of this study was to describe demographic, clinical and radiographic characteristics of symptomatic and asymptomatic Double X participants and to assess multilabel radiographic abnormalities on chest radiographs, interpreted by computer-aided detection software, as a possible tool for detecting TB-presumptive abnormalities, particularly for subclinical TB. Methods: Double X participants with TB-presumptive chest radiographs and/or TB symptoms and known risks were referred for confirmatory GeneXpert testing. The demographic and clinical characteristics of all Double X participants and the subset with confirmed TB were summarized. Univariate and multivariable logistic regression modelling was used to evaluate associations between participant characteristics and subclinical TB and between computer-aided detection multilabel radiographic abnormalities and TB. Results: From 2020 to 2022, 96 631 participants received chest radiographs, with 67 881 (70.2%) reporting no TB symptoms. Among 1144 individuals with Xpert-confirmed TB, 51.0% were subclinical. Subclinical TB prevalence was higher in older age groups, non-smokers, those previously treated for TB and the northern region. Among 11 computer-aided detection multilabel radiographic abnormalities, fibrosis was associated with higher odds of subclinical TB. Discussion: In Viet Nam, Double X community case finding detected pulmonary TB, including subclinical TB. Computer-aided detection software may have the potential to identify subclinical TB on chest radiographs by classifying multilabel radiographic abnormalities, but further research is needed.