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*

Asthma* ; Respiratory Syncytial Viruses*

GINS is Immunoelectromicroscopic technique combined indirect immunolabeling technique and negative staining technique in order to investigate surface antigens of particle specimens, such as virus, bacteria, debris of cell. This applicant investigation carry out on virus of JEV, HbsAg and salmonella. The results proved that samples not only have complete structure but also surface antigens with high specificity
Antigens, Surface ; Viruses ; Bacteria ;

In 2004, 13 mosquito samples and 31 pig blood samples were collected at reveral districts, Gia Lai province for virus isolating. Isolating virus was carried out by Aedes albopictus clone C6/36 cells. Identifying virus was implemented by RT-PCR with generate primers of Alpha, Bunya, Flavi viruses and specific primers of Japanese encephalitis and Nam dinh virus. Result: one Japanese encephalitis virus strain was isolated from pig blood samples at Ia Grai, Gialai and six Nam dinh virus strains were isolated from Clux tritaeniorhynchus, Culex vishnui and Culex gelidus at Chu se, Gia Lai.
Encephalitis, Japanese ; Viruses

No abstract available.
Influenza, Human ; Seasons ; Viruses

No abstract available.
Hepatitis Viruses* ; Hepatitis*