Olyset net sunk with 2% permethrin was used in Hai Duong, Hai Phong, Thai Binh. The rate of density index and house index were decreased from 0.23 and 23.3 to zero and persisted by 9 months. Breteau index and larve-house index was also decresed from 8.3 and 6.7 to zero. Olyset net showed its effect on Aedes aegypti and in various mosquitos and insects
Dengue Hemorrhagic Fever ; Mosquito Control ; Disease ; epidemiology

The monitoring of weight and direct interview of 159 pregnant women from 8 weeks to 9 months of pregnancy in 6 communes of Melinh district, Vinh phuc Province has shown that the average weight gain of pregnant woman was 7,4 kg which only obtain 74% of required weight. The quality and quantity of the diet did meet the demand, the diet’s energy was low(first trimester of pregnancy: 1488 kcal, rest 6 months of pregnancy: 2086 kcal which obtained 82% of energy demand).The nutrition in the diet was low.
Pregnant Women ; Weight Gain ; Diet

Adeal is a new type of larval mosquito control compound that inhibits larval development and emergence. Adeal is effective against various kinds of mosquitoes, including Anopheles spp., Aedes spp., and Culex spp. Long - term efficacy, even at a lower application dosage, easy handling requiring no special spraying or misting equipment. Adeal has been successfully tested in Japan, USA, Thailand, Sudan, Tanzania and Solomon Islands
Culicidae ; Mosquito Control

Efficacy of killing Ae. aegypti of Vectron 30 ULV in the field training in Hai Ba Trung district, Ha Noi capital
Culicidae ; therapy ; therapeutics

100% of mosquito batches were collapsed after 30 minutes exposing to test paper and dead after 24 hours following up. This indicates that the mosquito in test places is very sensitive to permethrin and lambda cyhalothrin and these chemicals are effective in killing mosquito during outbreaks. The number of locals where involved in evaluating the sensitivity of mosquito to chemicals are increasing. These are provinces where the insects surveillance systems are available.
Pesticides ; Culicidae

Aedes aegypti mosquitoes had been collected at field of some Northern provinces between 2001 and 2004 for studies of their susceptibility to insecticides. It was seen that: all of tested mosquitoes dropped immediately 100% and 100% killed after 24 hours. The results showed that all tested mosquitoes were highly susceptible to insecticides, such as permethrin, lambda cyhalothrin, and malathion from 2001-2004 in Northern region. The provinces participate in the test was up fro 5-7. Using the insecticides to kill Aedes aegypti by ULV spraying was effective in Northern provinces in Vietnam. It is adviced to send mosquitoes and lavae in June and July when the density of mosquitoes and lavae is high. Therefore, expanding studies to other provinces throughout the country to identify susceptibility of Aedes aegypti to insecticides is very necessary for Dengue Hemorrhagic Fever vector control.
Culicidae ; Insecticides

Background: Pesticides have been used widely in not only around the world but also Vietnam; however, their misuse can cause many serious health problems. For this reasons, it is necessary to closely monitor the use of pesticides and their effects on the health of farmers. Objectives: To describe the kinds of pesticides, the symptoms and related factors of acute pesticide poisoning among flowers planters. Subjects and method: A cross-sectional analytic design was applied with a sample of 107 households in the Hong Ha 1 and Hong Ha 2 village of My Tan commune, My Loc district, Nam Dinh province from November 2005 to February 2006. \r\n', u'Results: There were various types of pesticide that were being sprayed in the flower planting villages. Almost all types were moderately hazardous. 85% of farmers experienced at least 1 symptom of acute poisoning after spraying pesticides. The most common symptoms were headache, dizziness, rash (accounting for 45-58%), followed by red eyes and musculoskeletal symptoms (approximate 40%). The effects of pesticides to the farmer\u2019s health were proved with the typical symptoms of toxicity, especially headache, irritation of the face, red eyes. The percentages of self-reported toxicity symptoms were associated with sex, age groups, following manual and pesticide exposure. Conclusion: The results suggested that various interventions is required in order to change the knowledge, attitude and practice of pesticide use among farmers in general and flowers planters in particularly.\r\n', u'
pesticide ; acute pesticide poisoning ; flowers planter

Background: Pesticides safety, plant protection chemicals are widely used around the world, especially in agriculture to protect crops. \r\n', u'Objectives: To describe the real statute of knowledge and practice of safe pesticide use among flowers planters and various other related factors. \r\n', u'Subjects and method: The cross sectional analytic study was carried out in 2006 to evaluate the current situation of knowledge and practice of safe pesticide use in 2 flower planting villages: Hong Ha 1 and Hong Ha 2, My Tan commune, My Loc district, Nam Dinh Province. Results:The results showed that knowledge on determining toxicity levels and the absorption routes of pesticides to the human body through land and water is insufficient. As for pesticide use practice, the percentage of planters fully utilizing safety work clothes and other equipments was low. Multivariate analysis found that there was a significant correlation between good practice and knowledge. In addition, some predictors of good knowledge were: highly educated, male and age. Conclusion: The findings also discovered the priority of improving direct communication on safe pesticide use among planters. \r\n', u'
safe pesticide use ; flowers planters

Background: Using insecticides is considered as a temporary and rapid method for interrupting the disease transmission through disease vectors such as dengue. The insecticide Fendona, when absorbed into bed nets, is slowly released and rapidly knocks out, kills or repels mosquitoes as they come into contact with the bed net. Objectives: To evaluate the effectiveness of the Interceptor bed net (a unique textile-finishing product developed by BASF, Singapore PTE. LTD, that were coated with the Fendona insecticide) on controlling disease vector Aedes aegypti. Subjects and method: An experimental trial was carried out at the National Institute of Hygiene and Epidemiology and in the field of Hien Giang commune, Thuong Tin district, Ha Tay province. The changes of efficacy of Interceptor bed net were compared by not washing with washing at the different levels. Results: The unwashed bed nets can knock out and kill Aedes aegypti mosquitoes by 50% after 20 minutes of exposure on every trial. About 90-100% of total mosquitoes were killed after the first 30 minutes of exposure. Bed net\u2019s efficacy remains until 24 hours of the trial. The recovery rate of the mosquito is 0%. The same results were also observed after 90 days, 36 days and 18 days of bed nets being laundered. However, after 9 day of washing, the bed nets can only kill the mosquitoes up to about 90-95% of the total after the first 30 minutes of exposure. It also reached 100% of killing after 24 hours. However, its efficacy was conversely reduced with regard to the increase of laundry times. Conclusion: The density of adult mosquitoes and larvae for Aedes aegypti was significantly reduced in the intervention areas, even at zero level in comparison to the control sites. The insecticide had no side-effect or any stimulation to users, community, poultry, cattle and environment in the intervention sites.
Interceptor bednet ; disease vector ; Aedes aegypti

Introduction: Hepatitis C is a dangerous disease and if left untreated can have serious consequences to the patients. While hepatitis C is difficult to treat, its vaccine is still unavailable. Previous studies have showed that there is a low rate of drug users having HCV tests. This means HCV infections does not have any great importance attached to it amongst the drug user group.\r\n', u'Objectives: To discover the status of HCV infection among drug users in Hanoi and to analyse the associated factors. \r\n', u'Subjects and methods: This crossover descriptive study was conducted in Hanoi. Research objects consisted of only men within the 16 - 25 years old age group, who used heroin from 09/2005 to 12/2006. These participants were interviewed and tested for HIV, HCV and HBV.\r\n', u'Results: HCV prevalence is 35.1 %. Especially, the research has indicated that 100% of HIV infected cases have also contracted HCV. This co - infectious status can be a challenge to subjects when they experience ARV treatment. The mean age of surveyed participants is 19. 83.6% of them have attended secondary school. 30.1 % have taken part in illegal earning activities. \r\n', u'Conclusion: HCV infection was discovered in the early drug injection stage. The proportion of HIV infection among injecting drug users is 28.24 times compared to the smoking drug users.\r\n', u'
HeV ; HIV ; Injecting drug user