http://www.isnare.com/?s=author&a=Reas+Johnson Advice Reas Johnson Thu, 16 Jul 2009 00:00:00 +0800 http://www.isnare.com/?aid=384243&ca=Advice 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...