Hi Everyone, I am asking all but thought Sage and Alvin may have a little better idea on this. I would like to know if all these viruses have been typically the same for many years, or have they grown in strength, like the bacteria that get resistant to antibiotics. Since these are viruses and we don't treat with drugs, have they mostly just been around for years? I think I would feel better if I knew that these viruses come and go and are more prevalent in winter, but are basically the same viruses since we were kids. Do you understand my question? Sorry if it is confusing.</font>