Let me congratulate you on this job, @crytoitaly. It's really very interesting. You can tell that you handle the information and the story on this topic very well. Are you a doctor? Thank God, among the positive things that have advanced in the world are those that have to do with the medina. In one way or another, through literature and cinema, I had knowledge of the facts and techniques that you narrate here and may think it is fiction, but I am terrified to think it is true. The same happens with tuberculosis, which in a decade became a plague, a pandemic. Congratulations again to you and @adsactly for bringing texts like this. I really enjoyed reading it. Greetings