Good Idea, the dad of one of my coworkers died from plague a few years ago. He had been hunting with his son when he cut his finger while skinning a rabbit. He got sick the next day and they came down the mountain. He was very sick by the time they got to the hospital. It took 3 days for the doctors to find out it was plague. The treatment was too late and he died. A card like this would've helped. His son didn't make the connection to the illness and the rabbit till days later, cause we just don't think about plague anymore in these modern times. The doctors said he would have been fine if they had known sooner!