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Epidemiological characteristics of cholerae outbreaks at Hai Phong city (1976-1996)

Journal of Preventive Medicine.1998;8(3):30-34.

Retrospective study on the epidemiology of 9 cholera outbreaks at Hai Phong city during 1976-1996 was carried out basing on some epidemiological characteristics of cholera outbreaks allowed providing the hypothesis of cholera at Hai Phong was imported. V.cholera O1 generated the Ogawa serum type in 1976, 1980 and 1981; Inaba serum type in 1983, 1986 and 1987; Ogawa serum type in 1994, 1995 and 1996. The incidence from 22 to 43/100.000 population and it was high in the first outbreaks. The rate of adults was higher (64%-87%) than that in children and old people.
Disease Outbreaks ; epidemiology

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Surveillance system for cholera control in Hai Phong

Huong Thi Duong

Journal of Preventive Medicine.1999;9(3):52-27.

A surveillance system for cholera control was conducted in Hai Phong from February to December 1998 in Ngo Quyen and Thuy Nguyen districs. The isolation of V.cholerae from stool samples of acute diarrhoea on one fixed day per week was the index study. The result of the study contributed to improve the effectiveness of the surveillance system.
Cholera ; epidemiology

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Serum vibriocidal antibody response of volunteers administered killed cholera vaccine tablet

Phu Ngo

Journal of Preventive Medicine.2000;10(3):67-69.

Oral killed cholera vaccine tablet was administered to volunteers. The serum vibriocidal antibody response was monitored for several months and the frequency of significant vibrocidal antibody response was determined. The rate of volunteers having vibriocidal antibody responses is more than 50% after administration of oral cholera vaccine tablet.
Vibrio cholerae ; Vaccines

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Situation of host and vector in plague foci in the high-plateuax, 1992-2001

Dat Tuan Dang

Journal of Preventive Medicine.2000;10(4):42-45.

Since 1999, plague incidence tends to decrease and disease is localized in some linited areas in the High Plateaux region. The result of survey on flea and host showed that R.exulans was still predominant host. 100% of flea living on rat belong to X. cheopis species; Y.pestis was found in 3.54% of specimens from rats and in 1.47% of specimens from fleas. The findings suggested X.cheopis and important host (R.exulans) are the main factors of circulation of Y.pestis in the High Plateaux region
Plague ; Animals ; Fleas

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Investigation on plague's host and vectors at the border province of Lao Cai

Niem Sy Truong

Journal of Preventive Medicine.2000;10(4):63-66.

An investigation was carried out on 244 rats (71,9% sewer rat; 27,7% black rats, 0,4% house mouse) with various index 30-40, which was increased and kept at high level from March to September. 268 fleas were collected (only 1 species of X.cheopis), the flea index oscillated from 0,11 to 1,90 and reached the highest level in April all isolations determined Y.pestis negatively. Flea resisted to malathion 5%, pyrethroid group was the greatest effectiveness
Plague ; Fleas

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Immunological prevention of enteric infections

Canh Gia Do

Journal of Preventive Medicine.1998;8(2):92-96.

Nowadays the enteric infections are still the great concern over the world. According to the report from WHO, there is about 2.5 million deaths due to enteric infections every year in the developing countries: 120.000 deaths due to cholera, 380.000 deaths due to E.coli infections diarrhea excreting the toxin, 600.000 deaths due to dysentery, 600.000 deaths due to typhoid fever and 800.000 deaths due to rotavirus infectious diarrhea.
Immunization ; Escherichia coli Infections ; Typhoid Fever

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Chromosome aberrations induce in human lymphocytes by in vitro acute gamma radiation

Khoa Van Tran

Journal of Preventive Medicine.2002;12(5):32-35.

In vitro dose-response curve is presented for chromosome aberrations (dic.) in human lymphocytes exposed to acute cobalt-60 gamma radiation at different doses at dose rate of 0.3 Gy/min. The data showed that the relation between frequency of chromosome aberration and radiation dose, fitted to the linear quadric model: y = (4.88 +/- 0.57)x2 + (3.42 +/- 0.97)x + (0.06 +/- 0.08). This serves as basis of biological dosimetry
Lymphocytes ; In Vitro ; Chromosome Aberrations

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Characteristics of age, sex and laboratory tests of patients at the end stage systemic lupus of patients at the end stage systemic lupus erythematosus in Bach mai hospital

Hanh Thuy Tran

Journal of Preventive Medicine.2007;1(17):50-55.

Background: system lupus erythematosus (SLE) is an autoimmune disease, characterized by a variety of antibodies generated against the body itself, causing damage in all organs: skin, mucous membranes, joint-skeletal-muscle, heart, kidneys, lungs, nervous, mental, blood and lymph,... The disease progresses in waves, more and more serious and lead to death. Objectives: to study on characteristics of patients with the end stage SLE and to evaluate results of some tests in these patients. Subjectives and Method: a retrospective and cross sectional study was carried out on forty two end stage SLE patients at Department of Allergology and Clinical Immunology of Bach Mai hospital were studied between 1998 and 2004. Results: the majority of SLE patients were female (90.48%) and in group of 16-39 years old. Number of female patients was 14 times more than male patients. All 42 patients decreased peripheral blood cell amount: reducing both red and white blood cells (71.43%), reducing both three type (11.90%). 21/32 cases with severe hemoglobin reduction (65.53%). 38/42 cases of medium and severe neutropenia (90.48%). 33/42 cases with end-stage renal failure (78.57%). 13 cases of low blood Na+, 9 cases of increased blood K+. 30 cases with positive proteinuria (90.91%). 17/20 cases with pericardial effusion (85.00%). 35/42 cases with lung lesion images on ultrasound and x-rays (83.33%). 9 cases (30.00%) with increased AST and ALT above 100 U/l. 5 cases (16.67%) with meningitis. Conclusions: dramatic decrease in blood cell count, particularly in white blood cells. Most patients had renal failure at stage III, mainly with high blood potassium, and high protein and red blood cells in urine. Others included pericarditis, pneumonia, liver and neurological disorders.
Lupus Erythematosus ; Systemic/epidemiology ;

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Human influenza like illness caused by adenovirus at Da Lac province in 2004

Thanh Thi Hien Nguyen

Journal of Preventive Medicine.2007;17(3):5-9.

Background: Bacteria are among the common pathogens in Vietnam and other developing countries. Antibiotics are effective in the treatment, but the antibiotics gradually become ineffective due to drug resistance of bacteria, especially in children. The study on influenza virus in 2001-2003 has resulted in preventative activities against the acute respiratory tract infections in children.\r\n', u'Objectives: Determine the root cause bacterial infections and often determine the extent of antibiotic resistance of common pathogenic bacteria isolated in Hai Phong pediatric Hospital.\r\n', u'Subjects and method: At Microorganism Department of Hai Phong pediatric Hospital from January 2003 to December 2004, 558 trains of common pathogenic microorganisms were isolated from 0 -15 year old children clinical samples such as: blood, pus, cerebrospinal fluid, urine, stool...These samples of isolated microorganisms were also tested on their sensitiveness to several antibiotics.\r\n', u'Results:Findings showed that the 3 most frequently recognized bacterier out of 11 antibiotic sensitive tested species were: streptococcus pneumoniae (20.61%), neisseria (18.1%), E.coli (15.95%); and the most resisted antibiotics included: Co-trimoxazole, Chloramphenicol and Ampiciline. The staph was resistant to general Chlora, phenicol, Co-trimoxazol, and also sensitive to cefotacim, Amikacin. In the bacillus bacteria tested were resistant blue latex all, only works with Amikacin.\r\n', u'Conclusion: Its also found that every kind of tested bacterium had got various levels of sensitivity to different of antibiotics.\r\n', u'
Severe Acute Respiratory Syndrome ; Adenoviridae ; Influenza ; Human ;

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Study on the multiplicity of infection (MOI) of human rotaviruses strains in vero cells.

Luan Thi Le

Journal of Preventive Medicine.2007;17(3):22-25.

Background: \r\n', u'Rotavirus is the major important cause of infectious infantile gastroenteritis and diarrhea, especially the children aged 6 months to 24 months. Some efforts made to provide safe water and cultivate the hygiene have not reduced the diarrhea caused by rotaviruses. Develope a vaccine agaisnt this virus is of high importance. A question about the production of this kind of vaccine targeted athow to make human rotaviruses strains adapt cultured cells.\r\n', u'Objectives\r\n', u'To determine the multiplicity of infection (MOI) of human rotaviruses strains in vero cell.\r\n', u'Subjects and method: \r\n', u'The multiplicity of infection of Human rotaviruses strains (G1 P8, G1P4, and G4P6) were selected and the CDC- Atlanta US supplied the vero cell.Use vero cells cultivate, temper the vero cell and, applying direct immunofluorescence to determine the multiplicity of G1P8, G1P4, C4P6.\r\n', u'Results:\r\n', u'The MOI of G1P8, G1P4 and C4P6 are 0.02 ffu/cell, 0.15ffu/cell, and 0.35 ffu/cell, respectively.\r\n', u'Conclusion:\r\n', u'Using the vero cell to multiple the rotaviruses is the effective part during the production of vaccines against rotaviruses. The MOI of human rotaviruses strains G1P8, G1P4 and G4P6 are in order:0,02 ffu/cell, 0,15ffu/cell, and 0,35% ffu/cell. \r\n', u'
Rotavirus ; Vero Cells ; Cell Culture Techniques ;

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