let me ask you martha.. and any other health professional that would like to chime in...but first let me let you off the hook at the start... if you don&#39;t feel comfortable in answering I truely understand.. but let me throw this question out that I have been mulling over the past few days.. ..about flu viruses and grocery stores.. how concerned should we be in flu season with fresh produce that is laying out (non packaged goods) is a simple washing suffient for lettuces and fragil produce.. or can the viruses not be sustain on such products..