This study was performed at Hanoi University of Natural Sciences and National Institute of Malaria and Parasitology from April 2001 to May 2002. Biological trials on laboratory strains of An. dirus were carried out according to WHO/VCB/81.806; WHO/CDS/CPC/MAL/98.12 and WHO/VCB/89.981. Analyses were conducted by the method of fluid-fluid extraction with the solvent system of n-hexan. Fendona 10SC,Icon 2,5CS,K-othrin ISC, Imperator 50EC .soaked mosquito bednet had manifested insecticide effect. Their effect of killing An.dirus was maintained for 5 -6 months. The procedure of analysis of pyrethroide compounds in use for soaking mosquito bednet was established and the half live of 125-188 day long period for each compound was determined
Pyrethrins ; metabolism ; world health organization ;

A cross-sectional study was conducted in HCM City in April-May 2004 on 600 men who have sex with men (MSMs) in order to identify the risk factors of HIV transmission for elaborating a specific interventions . Results showed that a big group of MSM was constituted with a private service system. In this group, various high risk sex behaviors were practised : in average, sex buyer- 28,9%, sellers-36,5%, anal sex with male partners-2,7% in the last recent months, no more 60% of men using condom in sex relation; in the last 6 months a rather low rate in this group-16,6% using condom in sex relation with normal women, with a very low rate-26,3% often using condom. In this group, there were 1,7% using intravenous drug in the last 12 months
Homosexuality ; Behavior ; Demography ; Men

Study 600 men who have sex with men (MSM) over 15 years old in Ho Chi Minh City. Results: MSM group had complex sexual relations by oral sex and anal sex, with female partners and sex workers, and often used drugs. It’s necessary to have some intervention approaches in order to decrease HIV infection in this group.
Risk Factors ; HIV ; Male

At Cho Ray Hospital – Ho Chi Minh city from Dec 2001 to Dec 2002, 228 heart failure cases (96 males, 130 females, aged 58.4317.45) were studied. Their associated conditions were: 14 with diabetes, 5 brain blood infactus, 5 hyperthyroidies, 19 kidney failures. Among 162 patients with electrolyte disorders, 25 were died, the rate of hyponatremia and hyperkalemia was significantly higher in fatal group than in survival group. Hyponatremia was fatal risk factor and it should pay great attention to treat this condition with hypertonic natrium solution
Heart Failure, Congestive ; Cardiovascular Diseases ; Patients ; Electrolytes

10 batches of Japanese encephalitis vaccine (JEV) produced at (NIHE) during 1998 were investigated for antigen content. The results showed that: JE antigen content of these 10 batches was equal or slightly higher than that of the reference vaccine
Japanese Encephalitis Vaccines ; Antigens ; vaccines

A total of 190 patients were treated from 1/1995 to 5/2000. We use the classification of ATT bases on the on the clinical signs and imaging diagnosis. Basing on the conservative and operative treatment, we assessed the possibility of conservative treatment on normal and pathological kidneys. Results: 190 patients consist of 104 moderate cases, 86 severe cases. 83 cases are of right kidneys and 107 are of left kidney. 30 cases are of pathological Kidneys. 92 cases were operated Nephrectomy was 67%, the conservative treatment was 33%.
Kidney Diseases ; Wounds and Injuries

53,010 tests of RIA implemented during 1/1992- 10/1996 including 45,210 tests of HBsAg, 4,764 anti-HBs, 1,119 HBeAg, 1325 anti-HBe and 1,358 anti HBc to evaluate the frequent of HBsAg, double infection of HBV and HCV in the chronic hepatitis and the changes of markers of hepatitis B in persons carrying the chronic HBsAg. The results have shown that the frequent of the hepatitis B viral infection was very high and the double infection of HBV and HCV was common in patients with the chronic hepatitis
Hepatitis B ; Immunologic Techniques

The results of project "RAS/6/018" have shown that the rate of HBsAg carriers among normal people was 10.6-15.1%. The rate of HBsAg among blood donors was 1.3%, lower 10 times than this of general population. Frequency of HBV infection, HBV and HIV infection was high among patients with chronic hepatitis. There were markers of HBsAg and HBeAg of transmission from mother to her children among chronic viral hepatitis B carriers due to the uncompleted immunological structure and function.
Hepatitis B ; Monitoring, Immunologic

Evaluating the role of the health staffs and collaborators of the population and family planning program in the local level in the approach to women. Capacity of expansion of services and efficacy of these activities was carried out in urban commune of Tr¶ng Dµi, §ång Nai province and rural commune of Phôc LÔ, H¶i Phßng city. The results have shown that the collaborators of the population and family planning have successfully approached to women who were married, at reproductive ages. The collaborators self realized that it should strengthen their task and quality of services and knowledge, skill and practice
Reproductive Health Services ; Population

149 patients with gastric epithelioma indicated the total gastrectomy in the army central hospital 108 during 1994-2000. The esophago-intestinal anastomotic leakage, a severe complication occurred in 2 patients among group received the esophago-intestinal anastomosis as method of omega. There was no this complication in group received the operation as method of lygidakis (making the false stomach). This study indicated that technique of anastomosis played an important role in the esophago-intestinal anastomotic leakage.
Stomach Neoplasms ; complications ; surgery ; therapeutics