ZSL were also at the uk frog day, swabbing frogs that were for sale for chytrid. I asked if it was possible if they would swab the frogs i had purchased, but they declined saying they are only swabbing sellers frogs and only informing the sellers the results. (which helps nobody in the hobby directly in my opinion as even if the seller wanted to inform people they had sold the frogs too, they would not have there details to do so anyway) They did give me there email address and said i could contact them and get samples done that way though. ZSL also gave talks on chytrid in the hobby also....Ross