The authors studied epidemiology of forest malaria through a cross-sectional community based study in one province, central Vietnam. A total of 4036 individuals were investigated in 2004. Results: the prevalence of antibodies to P.falciparum was constantly about 20.5% and the prevalence rate of malaria parasite was 13.3%. Multivariate analysis showed that the regular forest activity was the main risk factor for malaria infection (OR = 5.51, p< 0.005). The population- attributable fraction for regular forest activity was estimated to be 99.5%. The results confirmed the major role played by forest activity on the malaria burden in this area and provide the basic for targeting control activities to forest worker. New interventions based on insecticide-treated materials need to urgently evaluated like: bed nets, hammocks...
Malaria ; Risk Factors ; Forestry

Insecticidal effects of Agnique MMF were investigated in the coastal brackish water shrimp farms in the Tan Thuan commune, Dam Doi district of Ca Mau province in 2000. The investigations were made in terracotta jars and shrimp ponds with the surface area 30m2 and 1000m2 each. Agnique MMF was found to have a high and fast killing effect on larvae of An.sundaicus at all three testing doses of 0.3ml/m2, 0.4ml/m2 and 0.5ml/m2. Especially larvae at instars of III, IV and pupae. However, the insecticide produced a low effect on Culex sitiens killing larvae of IV ins tar and only retarding larvae of I, II, III instar. The residual effect of Agnique MMF was found to be 14 days in the terracotta jars and 6 days in the ponds. In the direct observations, Agnique MMF was found to have no negative effects on rearing shrimps
Fatty Alcohols ; Polyethylene Glycols

The survey was performed on 144 patients with hypertension in Dong Thap Medical-postal Center between 2003 and 2004. Results: The patients' awareness of their hypertension had much limits, 62.5% of patients unknown the disease, 61.81% detected their-self disease by chance, so 95.83% had not blood pressure monitored, 90.97% were not treated regularly and 7.64% were not treated. Health education and treatment record had good results. The percentage of patients had blood pressure monitored increased by 61.8% (compared with 4.17%), regular treatment 46.53% (compared with 1.39%).
Hypertension ; Health Education

A study conducted in 4 communes in Easup district of Daklak province, the result showed that the nomadic people are of the ethnic minority group of Tay, Nung, Thai, Muong coming from Northern provinces. The main reason for their migration is poor economic conditions (100%). Whole families or households moved and settled in new areas (76.42%). Most of them lived in temporary houses (79.1%), near the forest, at edge of the forest or inside the forest (51.9%) Self prevention form mosquito bites was poor with 19.7% of new settles did not regularly sleep under mosquito nets or lack of misquito nets (52.2%). The malaria incidence among the new settlers was found to be higher than that of old settlers as clinical malaria: 4.75% compared to 2.34%, confirmed cases 2.71% compared to 0.20% while it was similar to the local ethnic minority groups with clinical and confirmed cases were equal in both groups
Malaria ; epidemiology ; Emigration and Immigration

A study on epidemiological characteristics of migration and malaria was carried out in Ea Sup district, Dak Lak province in 2002-2004. The findings showed that the migrants from the North in 2-5 recent years stayed permanently in the new land (98.8%). The main reason for migration was the economic factor (95.5%). The migrants were exposed to the malaria infection during their 1-2 week moving time and lack of protection means, such as bednets (83.0%) and antimalarial drugs (17%). The living place of the migrants was isolated and closed to the forest with temporary house (97%), and the malaria prevalence and incidence were high. There is no significant difference in malaria infection rates by gender, ethnic and parasite species. The risk factors were due to working and sleeping in the forest (98%), and poor structured houses (86%). The knowledge on malaria of the migrants was higher than local people (77% vs. 52%), but the income was lower (50% and 78%). The lack of bednets was 67% and the use of bednets was 90%. The rates of health care seeking behavior and accessing to health information were low: 36-56% and 27 30%.
Malaria ; Epidemiology ; Risk Factors

Remote sensing and GIS technology was studied in 2003 to detect and predict the malaria risk in Ham Thuan Nam district, Binh Thuan province where malaria is endemic. The results showed that: there is a chased relationships between natural, environmental and socio-economic indicators and malaria transmission in different areas of the district. The malaria morbidity rate from 1996 to 2002 and environmental parameters such as land cover, vegetation, climate, meteorology... were used for constructing a map to show the risk of malaria in the district through the retrospective and existing data SPOT, LANDSAT and ASTER satellite imageries. Based on this malaria risk map, the malaria situation and epidemic can be detected and prevented.
Malaria ; Forecasting ; Risk Factors

A study on the current status of malaria and the efficacy of interventions among migrants was carried out in one district with high malaria transmission in Central Highland - Vietnam from 2002-2004. The findings of the study showed that: The malaria prevalence of clinical and parasite were high in the migrant, especially among new comers (clinical rate: 5.2% and parasite rate:4.3%). These rates were higher than that in local people (clinical rate:5.0% and parasite rate: 3.1%) and were still high in the year 3 and decreasing after 3 years. The applied interventions for migrant were: strengthening of the health education, improvement of community health workers and they were effective. The prevalence and incidence of malaria were reduced from 3.9 to 0.65% and 45.3 to 28.1/1000 population, respectively, after 3 years. The malaria rate was reduced by 40-60% compared with that in the control group.
Malaria ; Therapeutics

From March 1997 – September 2002, study on 31 patients intracerebral hemorrhage (28 male, 3 female) and 16 patients of control group (14 male, 2 female). The mortality of surgical treatment group was 32% and control group was 56%. Most of the benefit was in patients with lobar hemorrhage and following criteria: volume of hematoma  60cc, age  70, GCS  8. These is some suggestion that in the next future the treatment of intracerebral hemorrhage will involve non-invasive, stereotactic aspiration of hemorrhage through a single burr hole within hours
Intracranial Hemorrhage ; Hypertensive ; Surgery ; Cerebral Hemorrhage, Traumatic ; therapeutics ; surgery

Remote Sensing and GIS technology was studied in 2003 to detect and predict the malaria risk in Ham Thuan Nam district, Binh Thuan province where malaria is endemic. The results showed that there was a strong relationship between natural, environmental and socio-economic indicators and malaria transmission in different areas of the district. The malaria morbidity rate from 1996 to 2002 and enviromental parameters such as land cover, vegetation, climate, meteorology... were used for building up a map to show the risk of malaria of the district through the retrospective and existing data SPOT, LANDSAT and ASTER satellite imageries. This map is corresponding with the malaria stratification maps of the district. Based on this malaria risk map, malaria situation and epidemic can be detected and prevented
Malaria ; risk factors ; diagnosis ; epidemiology

Mosquitoes and larvae were investigated in the forests, edges of forest and other landscapes in the jungles of U Minh Thuong and U Minh Ha during two years of 2002 and 2003. A total of 15 species (24.19% of total mosquitoes species found throughout the country and 37.5% of those in the Southern Vietnam) was found, some of which were typical species of the water forest fauma. A mingle species composition of flood plain forest fauna with presence of An. paraliae, An. umbrosus, An. separatus... and coastal brackish fauma with An. sundaucus and An. nimpe found in the study sites suggests that the forests narrowness, forest fires and other ecological damages have caused the changes of species composition and distribution of mosquitoes of forest fauna
Anopheles ; epidemiology ; Larva ; Trees