Recent research published in Nature and Science has demonstrated that the H5N1 bird flu virus is capable of cell fusion reception only with a particular subset of cell to be found in deep lung tissue, hence explaining the improbability of transmission between humans as this location is not exposed by inhalation of cough or sneeze borne virus. The common strains of influenza are capable of cell fusion with tissue to be found in the upper respiratory track and are therefore highly communicable. It is not known by what mechanism the H5N1 would have to genetically mutate in order to fuse with the kinds of receptors to be found in the upper respiratory track, but there is general agreement that it will make for a major change in the viral structure. It has also been determined that the H5N1 has been in existence for a very long time which evidence supports the belief that this virus does not mutate easily.
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18 years ago