The preliminary investigation result of first type H1N1 influenza virus is announced

The preliminary investigation result of first type H1N1 influenza virus is announced
The preliminary investigation result of first type H1N1 influenza virus is announced
Geneva, May 11 (Xinhua) ' Reporter far actor Yang in the Liu 's) After analyzing first type H1N1 influenza epidemic situation and relevant data of some countries such as Mexico and U.S.A., World Health Organization announces the preliminary research conclusion about this influenza virus for the first time on the 11th. The following is a content summary of the conclusion: First, cause epidemic situation a kind of new virus never found on person or animal before at present. The scientist is expected, there is not the human immunity to this kind of virus very low and at all, or only the elderly have certain immunity. Second, first type H1N1 virus seems more infective than seasonal influenza virus and stronger. Seasonal influenza virus take place continuously ' Namely two generations of morbidity) Generally between 5% and 15%, and the sending rate, as 22% to 33% continuously of such new virus. Third, healthy person are being infected with H1N1 virus future trouble disease, symptom generally lighter, and person suffering from a certain chronic disease after infected with H1N1 virus easy to have illness coming on relatively in weight to even die. The data reveal, the case (including death case) that the other countries outside of Mexico appear Seem to originally suffer from a certain chronic disease, this has caused medical researchers' special concern. Fourth, in most serious Mexico and U.S.A. of epidemic situation at present, the age bracket that first type H1N1 influenza virus infects the crowd should be lower than seasonal influenza. Though there are the definite diagnosis case of the reports of various countrieses from baby to every age bracket of the elderly at present, but the young patient is badly sick or the death is a prominent characteristic in initial stage of this epidemic situation breaks out. Fifth, at present, the epidemic situation is still in initial stage of breaking out. So some scientists judge, only the virus goes still one step further to travel and spread, the overall clinical manifestation of the first type H1N1 influenza will become obvious. As the continuation of the virus is propagated, besides inherent variation of virus, other factors may influence the severity of the epidemic situation in a totally unknown way too. The scientists are anxious, as first type H1N1 influenza virus is propagated to the Southern Hemisphere, this kind of virus will be bound with seasonal influenza virus in winter in the Southern Hemisphere, thus a certain change takes place. Sixth, in the poultry of some countries, H5N1 -type bird flu virus has already " taken root " . It is unable to expect now, once first type H1N1 influenza takes place to prevail big, how will H5N1 virus responded to. Know H5N1 one the intersection of animal and influenza virus in virus, generally is very easy to travel get people already at present, even if someone infects, just propagate from a person to another person directly only in extremely rare cases.


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