PGS. Dr. Nguyen Tran Hien, Director of the Institute of Hygiene and Epidemiology, as stated on the return of the A/H5N1 influenza after 2 year absence.
02/04/2012
Bird flu has appeared and tend to break out in the North but this second case appeared in the Southwest region. This is abnormal?
Dr. Nguyen Tran Hien: This is because the ducks run over the northern winter here so much. Therefore, the risk of transmission from ducks to move from place to another building higher. In addition, although the cases appear sporadic only, without causing a large outbreak, but it is worried that H5N1 influenza viruses still exist in waterfowl flocks in some parts of the same form healthy carrier.Vaccination of poultry and waterfowl in the household is not high.
The results of monitoring of the Veterinary Department (MARD) has shown that around 5% of ducks carry the virus, which is evidence of the H5N1 virus is still present in the environment and can cause outbreaks.
Two deaths from influenza A/H5N1 past is due to direct contact and use of waterfowl diseases.
 PGS. Dr. Nguyen Tran Hien, Director of the Institute of Hygiene and Epidemiology PRIVATE |
The ability of individual influenza infection also depends on their susceptibility. Even in a family with children who eat meat and poultry diseases, but not everyone was infected, and death, or infection without active disease. In previous outbreaks, to slaughter millions of birds who make the direct destruction of the exposure. This object is very large but very few people who are infected.
What makes people fear the re-export cases of bird flu in humans, sir?
Bird flu different than seasonal flu, pandemic flu and human flu. It is a disease of poultry should live virus in poultry and prevalence of infection is very low, to the present time has not recorded any cases spread from person to person. What we are most worried about H5N1 flu virus changes to adapt to spread from person to person. They grow, live in servants, and throat disease and easily transmitted person to person.
Occurs once the virus from birds and animals to humans yet, sir?
There is. Most recently the H1N1 flu pandemic. These strains of influenza virus genes are mixed from pigs, poultry and humans. At this time, H1N1 influenza pandemic has become the normal seasonal influenza, mild virulence. H5N1 has also found that the integration, if it is a disaster.
Institute of Hygiene and Epidemiology has studied influenza A/H5N1 vaccine in 2005. So when people would have A/H5N1 flu vaccine to prevent infection?
Flu vaccine is in phase 3 of the testing process. The scientists continue to evaluate the efficacy and safety. If the above requirements ensure, in the near future, this vaccine will be widely used in the community.
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