The study uses combining allergen preparation process of Coca and Sutherland method to prepare feather allergen with efficiency of 1.87g%. The allergen composes 16 amino acids, among that cyclic ones are of 19.25% and total nitrogen protein levels are 11,940 PNU (1/500 solution). The produced allergen has low toxicity, so it is safe for use
Allergens ; Candida albicans

Using tests in vivo and in vitro to assess potency of Candida albicans allergen in 6 lots of rats with 250 - 300g in bodyweight, each lot had 10 rats. Results: anaphylactic value was 3.4±0.04, mastocyte test, prick test and stimulatory test had highly positive rates. Aandida Albicans allergen is one of the rhinitis inducing allergens that have high positive rate of tests: prick test 55.36%, stimulatory test 87.10%. Candida albicans allergen can be used for specific diagnosis in subjects, who are suspected of allergy with Candida albicans
Candida albicans ; Allergens

Among 1789 residents in Lach Tray ward of Hai Phong City 71 suffering from broncho asthma. In general the prevalence was 3,97%, in children 4,10%, in dults 3,92%, clinically 70% had a >5 year long duration of the disease. 54,93% had the crisis in winter, nocturnal crisis 70,42%, dyspnea 100% maily in expiration with the frequency of 25 rhythm min, sputum cough 74,64% and other signs. The leading causes were: resfriratory tract inflammation, changed weather, allergy and allergenic foods.
Asthma ; Diagnosis ; Epidemiology

Studing on treatment effect of thymomodulin with dose of 1 tablet (8mg/day) in 3 continuous months on 38 patients with exogenous bronchial asthma at general clinical, Sea Medical Institute Viet Nam. The result: most patients are at the age from 30-49, and have allergic prehistory individual and family, in particularly prehistory of bronchial asthma. Thymomodulin have clearly effect in treatment of exogenous bronchial asthma on clinical including good result is 42,11%, moderately good result is 36,8% and moderate result is 21,05%. After treatment, criteria for immunology as skin test, reaction kill specific leukocyte, total plasma IgE change significantly
Thymus Extracts ; Therapeutics ; Asthma

A study was carried out on 737 seamen working in maritime transport companies at Hai Phong. The results showed that the prevalence of hepatitis B virus (HBV) infection among seamen was 54,86%, in which 15.57% were found to be positive with HbsAg and 39.29% positive with anti HBs. The HBV infection rate increased with age. The highest HBV infection rate was in 30 – 49 age group. Furthermore, the HBV infection rate increased with the number of years of service, and was highest when people had worked for 6 – 15 years. HBV infection rate among the seamen with good knowledge on hepatitis was likely lower than that of the seamen with inadequate or incorrect knowledge about hepatitis
Epidemiology ; Hepatitis B virus ; viruses ; liver

The study have been perfomed in 80 patients (mean age: 28.87) suffered allergic rhinitis by house dust mite at Central Otorhinolaryngology Hospital and 103 Military Hospital and 45 healthy people. Among the patients, 63.75% was from 16 to 30 years old. The older people have less rate of catching disease. 60% patients have allergic individual history and 61.25% have allergic family history. 80 patients have two symptoms of rhinitis, 67 patients have three symptoms . In prick test, the rate of positive 1+ was highest. Positive results for house dust mite was higher, especially in 2+ and 3+ levels. After treatment, diameter of elevated lesions reduced significantly. 65 patients were positive in nasal stimulating test. Before treatment, patients had mastocyte disintegrate level from 6% to 40%. After treatment: IgA increased significantly, IgM increased unsignificantly Average IgE level in healthy people is lower than that in patients. Result of immune treatment after 6 months is very good and good (80%)
Dust ; Diagnosis ; Immunotherapy

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 ; Adult ; Alcohol Drinking ; Alcohol-Related Disorders ; Asian Continental Ancestry Group* ; Cross-Sectional Studies ; Drinking ; Humans ; Internet ; Male ; Prevalence ; Risk Factors* ; Smoking ; Surveys and Questionnaires* ; Vietnam