What makes swine flu so dangerous is that like all influenza viruses it undergoes the process of antigenic drift. This is when spot mutations occur on the genetic material that causes slight changes in the physical make-up of the virus.
These slight changes are what frustrate scientist’s attempts to create the ultimate vaccination for influenza. Due to constant changes to the protein particles of the outer coats of viruses (which the immune system is targeted for during vaccination) new vaccines are always needed to combat ever new versions of the viruses.
For more information look at:
http://www.swine-flu-facts.org
http://www.swine-flu-facts.info
Our Ashes on the Wind – an explanation
1 week ago
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