No abstract available.
Animals* ; Viruses*

Genotypes of hepatitis C virus are clinically relevant to epidemiology, prognosis and therapeutical management of HCV infection. Our study aims to compare different methods for HCV genotyping. Hepatitis C genotypes and subtypes of infected patients in Ho Chi Minh city was determined by serological typing using HCV serotyping 1-6 (Murex company), by molecular typing using Innolipa HCV II assay (Innogenetics NY) and direct sequencing of core and NS5b region. Our results show that the hepatitis C virus by analysing the sequences of the core and NS5b regions gave concordant results. The NS5b region is reliable for the identification of HCV subtype 6 circulating in Viet Nam.
Hepacivirus ; Viruses

Haemagglutination Inhibition Technique was applied to study conversion anti-Japanese encephalitis (JE) virus antibodies in pigs in Hoai Duc, Ha Tay, in 2002. The results showed that antibody conversion in pigs occurs year-round. Vero and C6/36 cells were used to isolate JE virus. From 83 mosquito pools and 30 pig blood samples, 7 JE viruses strains were isolated from mosquito pools, and 4 JE viruses strains were isolated from pig blood samples. These JE viruses strains were isolated either in the epidemic or in the non epidemic season. Sequencing of E gene region of JE virus strains that were isolated from mosquitoes and pigs, circulating of genotype I of JE virus in North Vietnam in 2002
Encephalitis Virus, Japanese ; Encephalitis Viruses ; Encephalitis ; Viruses

No abstract available.
Bronchiolitis* ; Respiratory Syncytial Viruses*

No abstract available.
Antibodies* ; Hepatitis Viruses* ; Hepatitis*

No abstract available.
Influenza, Human ; Seasons ; Viruses

No abstract available.
Bronchiolitis ; Respiratory Syncytial Viruses

Asthma* ; Respiratory Syncytial Viruses*

To identify the viral cause in children with acute diarrhoea in §ucTrong hospital - LamDong province, 158 stool specimens of children with Acute diarrhoea have been collected and identified for rotavirus, adenovirus and snow mountain virus. The result were compared with 151 stool specimens of healthy children in the same time for 3 years (1994-1997). Results of the study showed: the viral positive was found in 52.2% of the diarrheal group. While it was 1.3% in the Healthy Control Group. Among the viral positive, the rotavirus is 50%, Astrovirus is 1.26%, snow mountain virus is 0.67% and adeno virus is 0.63%. For three years, three types of rotavirus has been identified in DucTrong, which are: Rotavirus type I (23/79), Rotavirus type II (13/79), rotavirus type IV (21/79) undifferent (22/79). The rotavirus type III has not been found in this time. The clinical characteristic of the viral diarrheal group has been found in 94.4% of children under 2 years, 81% of cases had vomiting. The dehydration including degree B and C according to the classification of WHO is from 84.74% to 95.34%.
diagnosis ; Diarrhea ; child ; Viruses

In 1998-1999, 124 human sera and 27 rodents' sera samples were examined for Hanta virus antibodies. The results showed that 4.03% of human sera samples and 3.37% of rodent sera samples were positive with Hanta virus.
Viruses ; Hantaan virus ; epidemiology