"Nurseries do not sell viral/sick plants." These lines alone deserve the Hall of Fame, Jim, when so many cases of viral infection originate in commercial sources. They are not just going to dump a variety because the material gets infected. And the current line of research in Holland (for decades) has been finding cultivars that show no symptoms. Self explaining. Of course we have nurseries that sell healthy material and can be trusted. Lauw de Jager comes to the mind, Alan Horstmann, Rhoda, Dirk, Dash when he was in the business, etc, etc. but the fact that we have to mention those that sell healthy material is an indication of how things go.