Subject 6928 persons in 1454 households, T©n Minh commune, Th­êng TÝn district, Hµ T©y province where the dengue hemorrhagic fever occurred during 1988 -1992. Methods: survey of focus of Aedes aegypti, training, and education for public perception, release of Mesocyclops in the field training and monitoring the vector. Results: the education for enhancement of the public perception, release of mesocyclops and removal of the wasted objects gave the long-term social and economic efficacy. These were easy to implement and can be enlarged to other areas to actively control the epidemic fever/ dengue hemorrhagic fever
Dengue Hemorrhagic Fever ; Copepoda

No abstract available.
Hemorrhagic Fever with Renal Syndrome*

In 2 epidemics of Dengue haemorrhagic fever in Bien Hoa, the predominant serotypes of dengue virus in the year 2000 and 2003 were Dengue-4 and Dengue-1, respectively. The number of clinical cases of children under 15 years old diagnosed as viral infection and unknown fever (n=1653), were higher than those diagnosed as Dengue fever/Dengue haemorrhagic fever (DF/DHF) (n=1122). The number of Dengue virus isolated from patients with viral infection and unknown fever (n=102) was higher than those isolated from DF/DHF cases (n=85). The number of Dengue positive MAC-ELISA cases in 2 years was 870 corresponding to a positive rate of 30.27%
Dengue ; Epidemiology ; Dengue Hemorrhagic Fever

69 patients with Deengue hemorrhagic fever (50 cases with shock and 19 cases without, aged 14-50) treated in the clinic institute of tropical diseases in the year 1998, were investigated by ultrasound just after admission from the 3rd to 7th day and by blood daily examination. The examination is related closely to the severity on clinic. Exudation rate in shock group account for 68.42% and in no shock group 24%. The early detection of exudation favorizes the diagnosis and treatment by humaral compensation in time to limit the progress to shock and death
Dengue Hemorrhagic Fever ; Ultrasonics ; Patients

No abstract available.
Hemorrhagic Fever with Renal Syndrome* ; Pregnancy*

No abstract available.
Gelatin* ; Hemorrhagic Fever with Renal Syndrome*

The study was conducted at five communes from regions (Hµ T©y, Thõa Thiªn HuÕ, §µ N½ng, Kh¸nh Hßa, and Kiªn Giang province). The results indicated that the key breeding places of Aedes aegypti is different from region to region. In the Northern field trial, key breeding sites of Aedes aegypti are concrete tanks (65.6%); aquarium tanks (10.0%); and flower vases (15%). In the Central region, key breeding sites of Aedes Aegypti are wells, drums, ant traps, aquariums, toilette tanks. In the South, Aedes aegypti larvae are concentrated in big-size jars (67%), small-breeding sites of dengue vectors was changed after applying the intervention methods. It is clearly that the identification of key breeding places of Aedes aegypti are useful to propose the appropriate, effective control methods, and to evaluate the success of intervention measures.
Dengue ; Aedes ; Dengue Hemorrhagic Fever

Source of Aedes larvae was investigated in 200 households in provinces of Hµ T©y, Thõa thiªn HuÕ, §µ N½ng, Kh¸nh Hßa, Kiªn giang between 1998 - 2000. Mesocyclops were released to water containers and the waste water containers were eliminated. the results showed that in Northern area, mosquito and larvae population reduced by 100% after 13 months of project and maintained for several following months. In Central area, larvae population reduced by 90,7% and mosquito by 39.2% to 71.8%. In southern area, larvae population reduced by 97.7%, mosquito by 92.0% and there was not patient with dengue fever
Copepoda ; Dengue ; Dengue Hemorrhagic Fever

A descriptive prospective study of hospitalized Dengue including Dengue Fever (OF) and Dengue Haemorrhagic Fever (DHF) was undertaken in An Giang General Hospital. An Giang Province from April 2002 to May 2003. A first blood sample (BS) will be taken on admission to detect dengue antibody by Elisa (IgM and IgG) and virus isolation. The second BS will be drawn on discharge with the same test. If the patient is discharged before day 10th after the onset of fever, a third BS will be planned, for IgM and IgG too. In the hospital, all patients will be follow-up adequate platelet count and haematocrit. - There is 1009 patient selected (less than 15 years old), 5 DHF deaths due to DHF and 4 deaths due to others. Classification of the Dengue hospitalized cases: DF (28. 5%), DHF (49%) and DSS (10%). - The highest positive IgM rate is belong to DSS patient group (89%) and then DHF, the lowest rate is DF (34%). The virus isolated rate of the DSS patient group is highest (16.8%), and then DF (14.6%). DEN2 is predominant (with 84% of all virus isolated), and then DEN4 (8.8%). - On the admission, there are the overload for Dengue diagnosis. 12% cases with DF/DHF on the admission but they are typhoid fever, measles and viral infection on the discharge. - Clinical and laboratory findings are the more severe (thrombocytopenia and haemoconcentration), the more positive IgM rate and virus isolated. - For the correspondences between DF, DHF diagnosis. Clinical and laboratory findings according to WHO criteria: there are only 22.2% of DHF satisfied 4/4 WHO criteria, 39.2% satisfied 3/4 criteria and ultrasound is the test supported for these DF, DHF cases. - 71% confirmed DHF cases and 26% confirmed DSS cases have not thrombocytopenia and haemoconcentration. - The haemorrhagic manifestation just appear in 46.6% of DHF cases, even if DSS cases, there are only 56.2% cases have got the haemorrhagic manifestations.
Dengue Hemorrhagic Fever ; Dengue ; Diagnosis

No abstract available.
Hemorrhagic Fever with Renal Syndrome* ; Pregnancy*