Apparently this virus began in 1973 or sometime around then in Norwalk Ohio....and was shortened to the term norovirus.many other SV's existed at this time, but this one seemed to be an extremely contagious form causing outbreaks. Now I know in 2002 or something all SV's were termed norovirus. Now my question is, what exactly is this old original norovirus that is so contagious called today? Im curious because not all SV's share the same properties, as the 'original norovirus" was much more contagious than the other stomach viruses. Does anyone know the answer to this?Edited by: johnyricer