Only way I'd accept a snake from her was if it was dead and preserved in formalin and the jar it was in had been soaked in ammonia beforehand(or just put in a sealed bag filled with ammonia..). Or maybe not.. the disease could have attached itself to the outside of the bag..
Even after coming home from shows, I spray MYSELF with Provent-A-Mite or Raid(the snakes just get treated with PAM not the Raid, LoL). I don't take chances. You never know who is vending at what show, who has touched what animal before you have, or if someone is selling someone else's animals.