The study on workplace environmental conditions and health status of male workers at Thai Nguyen Coalluary Factory indicated that the working conditions were hard and hazard to workers' health. The workers had to sufferred from high temperature and other hazard factors that were above allowed standards, such as noise, toxic gas (CO, CO2, SO2, NO2...), especially coal dust, iron, silica dusts etc. Most workers' health was at level II and III with high rate of diseases such as cardiovascular and occupational diseases. Some measures have been suggested to protect workers' health.
Environment ; Health ; Disease

Study on impact of work environment and examination on health status of 117 male workers in workshop of “Mai Dong” Company showed that these workers have to work in the heat stress environment with hazard factor lavels are higher than allowed standard such as noise, dust concentration, toxic gases (CO, SO2, NOx..) Almost workers were suffer from diseases as E.N.T, tooth and face, lung disease, eyes. From study measures are suggested to protect and take of workers.
Environment ; Health

Assessment some plans, the harm factors for worker’s health as follows: micro - climate, compared to permissible standard, at all working places are over from 2.1 degree to 3.3 degree, the humidity of the air is in the limit, in general the speed of the wind is low and unhygienics. The physical factors: shinning is under the minimum level from 20-100 LUX, the concentration of dust is under the standard, noise is high. 900 workers (686 women) had been examined periodically. Results: The most common diseases as follows: odonto-maxial-facial disease (66,7%), ear-nose-throat disease (60.6%), gynecology disease (58.4%). In addition, muscle-bone-joint disease, ophthalmology disease, entero-gastrology disease, cardiovascular disease, resspiratory disease... are occupied significal rate (>20%).
Delivery of Health Care ; Women ; Environment ; Health

Researching work condition and Examination 134 males’ work health of N°1, Tool product company - Ha Noi shows that in workplaces there are hazard's factors over standard as heatstress, hight concentration of dust & noise... Worker’s health as well as level II & III is about 70%. Almost workers were suffered from popular diseases as E.N.T. (61.94%) eye diseases (52.54%) tooth (29.85%)... The rate of diseases is developing follow work time. The results suggested that it must improve work condition as well as health care for worker, supplement protective equipments…
Health ; Epidemiology

Study was carried out at Thai Nguyen steel refining factory from September 2004 to May 2005. Survey, examination of working environment, working condition at the main departments of the factory were implemented; direct examination for 521 male workers, aged from 20-45 years. Results: the temporature inside the workshop was higher than surrouding area from 0.6-12.30C, the processing area was dry, low humidity, wind speed and degree of illumination was under allowed limits. In almost of the processing area, noise level of CO, CO2, SO2 gas all in allowed limits. 67% of samples measured the overall dust and respiratory dust level were over the standards; only the concentration of H2S gas was under limitation. Male workers’ health of rather good (II) and average (III) levels were 69.86%, health of bad (IV) and very bad (V) were 27.25%. The rate of dental disease was 23.44%, otorhinology disease 21.72%, digestive disease 14.06%, muscular disease 9.84%, professional diseases 4.84%.
Health ; Epidemiology

Background: Dengue Fever/Dengue Hemorrhagic Fever (DF/DHF) has emerged as one of the most important public health concerns in Viet Nam in recent years. Key breeding containers plays an important role in driving dengue vector control in the public. Objectives: The research was conducted to discover the dengue situation, its vectors and key containers to make relevant recommendations in reducing effectively the vector population. Subjects and methods: Two hundred households in two communes of Nam Dinh province (100 in each studied commune) were selected randomly. Vectors collected from the field were identified using mosquito key. The number of dengue larvae and mosquitoes were directly counted or adjustment methods were used to estimate the true number in each type of water storage facility. Results: In Minh Thuan commune, Ae. albopictus larvae were mainly concentrated in jars (49%) and discards (59%), most of Ae. aegypti was found in cement tanks with a volume more than 500L (72%). In Trung Dong commune, larvae of Ae. albopictus concentrated in jars (40%) and discards (25%) and aquariums (15%), while most of the Ae. aegypti larvae was discovered in cement tanks with volumes more than 500L (86%). Mosquito density index of Ae. albopictus in Trung Dong and Minh Thuan communes was 0.56 and 0.38, respectively. The Aedes larvae, houses for larvae and Breteau index were nearly at the threshold of dengue epidemic occurrence for Ae. aegypti and over a certain threshold for Ae. albopictus. Some recommendations were provided to help reduce the dengue vectors. Conclusion: Investigation of key mosquito larvae in water containers was useful in driving the effective dengue vector control. Further studies are required to evaluate the impact and methods to manage water containers in the local area.
Dengue fever ; mosquito ; vector control

Ischemic colitis (IC) is an underreported chronic disease characterized by the hypoperfusion of the bowel mucosa. The diagnosis and treatment may be challenging because its clinical course resembles other colitis or even colorectal malignancies. This paper reports an untypical case to underline the diversity of IC manifestation. A 68-year-old man with several comorbidities was admitted because of abdominal pain with a 6-month duration and a mass in the left lower quadrant. Colonoscopy revealed erosive pseudomembranous colitis narrowed colon segments with ulcerated mucosa mimicking colorectal cancer and inflammatory bowel disease. The stool cultures and Clostridium difficile toxin tests were negative. After the failure of conservative therapy, the Hartmann procedure with temporary ileostomy was performed uneventfully. The histological results of the surgical specimens revealed IC with focal pseudomembranous areas.

BACKGROUND/AIMS: To compare the performance of a modified Glasgow Blatchford score (mGBS) to the Glasgow Blatchford score (GBS) and the pre-endoscopic Rockall score (RS) in predicting clinical interventions in Vietnamese patients with acute nonvariceal upper gastrointestinal bleeding (AN-VUGIB). METHODS: A prospective multicenter cohort study was conducted in five tertiary hospitals from May 2013 to February 2014. The mGBS, GBS, and pre-endoscopic RS scores were prospectively calculated for all patients. The accuracy of mGBS was compared with that of GBS and pre-endoscopic RS using area under the receiver operating characteristic curve (AUC). Clinical interventions were defined as blood transfusions, endoscopic or radiological intervention, or surgery. RESULTS: There were 395 patients including 128 (32.4%) needing endoscopic treatment, 117 (29.6%) requiring blood transfusion and two (0.5%) needing surgery. In predicting the need for clinical intervention, the mGBS (AUC, 0.707) performed as well as the GBS (AUC, 0.708; p=0.87) and outperformed the pre-endoscopic RS (AUC, 0.594; p<0.001). However, none of these scores effectively excluded the need for endoscopic intervention at a threshold of 0. CONCLUSIONS: mGBS performed as well as GBS and better than pre-endoscopic RS for predicting clinical interventions in Vietnamese patients with ANVUGIB.
Asian Continental Ancestry Group* ; Blood Transfusion ; Cohort Studies* ; Gastrointestinal Hemorrhage ; Hemorrhage* ; Humans ; Prognosis ; Prospective Studies* ; ROC Curve ; Tertiary Care Centers

Background: Avian influenza (AI) is a contagious disease that causes illness and death in poultry and humans. High pathogenicity AI (HPAI) H5N6 outbreaks commonly occur in Quang Ninh province bordering China. In June 2021, the first HPAI H5N8 outbreak occurred at a Quang Ninh chicken farm. Objectives: This study examined the risk factors associated with HPAI H5N6 and H5N8 outbreaks in Quang Ninh. Methods: A retrospective case-control study was conducted in Quang Ninh from Nov 2021 to Jan 2022. The cases were households with susceptible poultry with two or more clinical signs and tested positive by real-time reverse transcription polymerase chain reaction. The controls were households in the same village as the cases but did not show clinical symptoms of the disease. Logistic regression models were constructed to assess the risk factors associated with HPAI outbreaks at the household level. Results: There were 38 cases with H5N6 clade 2.3.4.4h viruses (n = 35) and H5N8 clade 2.3.4.4b viruses (n = 3). Compared to the 112 controls, raising poultry in uncovered or partially covered ponds (odds ratio [OR], 7.52; 95% confidence interval [CI], 1.44–39.27), poultry traders visiting the farm (OR, 8.66; 95% CI, 2.7–27.69), farms with 50–2,000 birds (OR, 3.00; 95% CI, 1.06–8-51), and farms with ≥ 2,000 birds (OR, 11.35; 95% CI, 3.07–41.94) were significantly associated with HPAI outbreaks. Conclusions Combining biosecurity measures, such as restricting visitor entry and vaccination in farms with more than 50 birds, can enhance the control and prevention of HPAI in Quang Ninh and its spread across borders.

Background: Melaleuca essential oil has many good effects, bringing economic efficiency; however, low extraction efficiency is a problem that needs to be overcome. This study aims to enhance the efficiency of extracting Melaleuca essential oil by employing deep eutectic solvents (DESs). Materials and methods: Branches and leaves of Melaleuca cajuputi Powell were pretreated by DESs. Carry out the distillation of essential oils by steam distillation. Determination of the chemical composition of essential oils by chromatography-mass spectrometry (GC-MS). Results: The combination of choline chloride and oxalic acid to create DESs solvent system helps the extraction efficiency of Melaleuca essential oil increase by 160%. In addition, the total content of 1,8-cineol and isocineol in the essential oil extracted with DESs solvent was 34.019%, higher than that of the essential oil extracted with distilled water at 30.749%. Conclusions: The positive results show the potential of using DESs solvents to improve the yield and quality of Melaleuca essential oil