**Note from Cammy: Sorry for the random highlighting and whatnot. I will format this at a later date. =) Yellow Fungus: Possible Cause & Effects () Published: June 18, 2008 An Article by Cheri SmithHistory: As many of you know in early 2000's, for several months we collected data from owners of beardies that had what we have called the "Yellow Fungus", for lack of a better name. The Pogona_Diseases list on Yahoo was started by Jeni Graybeal because she lost a dragon to it. She asked me to join the list, since I had lost two dragons to the fungus and had been collecting any information we could find about this and emailing professioals about it. Her idea was to make a central location where owners, veterinarians and researches could find and share information and possible treatments until more was known to the medical community. We, like many others, could not find what ours had until it was too late, and even though we took them to herp experts, no one knew what this was as it did not culture normally from scrappings in the normal time. We now know there are several types of fungal infections being dubbed "Yellow Fungus". We know some of the treatment methods that have worked and cured some of the dragons. Recently, we think we may know what is the cause of many of them coming down with this. Not all "yellow fungus", but we suspect in many of them. Although we have not been able to find a research group to take on this project steadily (we are still looking) we have been able to collect data and photos that shows an emerging pattern with many of the cases, thanks to the owners that contacted us. Jeni, ours and almost all of the 78 cases we have collected histories on, had previously been treated for parasites or infections with antibiotics, most of those with Albon, a popular drug as it is effective in treating coccidia. The others that did not fit this profile were dragons that lived on soil and we believe may have contacted a different fungus from soil. Dr Jean Pare has been studying that and published on himand his grouos findings now also. We believe that antibiotics are also killing the good bacteria in their digestive systems and allowing yeast that is normally in their system to flourish and creating massive infections. We think dragons are then excreting the yeast/fungus through feces, which in turn is getting on their skin/scales around the vent area. (the vent area being the most common first visible sign of the problem, but not in all cases) and causing the "Yellow Fungus" externally. Further, once they have it they can pass it to other dragons or spread it to other areas of their bodies and cagemates. Left untreated, both externally and internally, it destroys tissue and eventually kills the dragon. "Candida yeast can become so massive and invasive that is enters the Fungal form where it provides very long, root-like structures that penetrate the mucous lining of the gastrointestinal wall. This penetration breaks down the protective barrier between the intestinal tract and bloodstream, allowing many foreign and toxic substances to enter and pollute the body systemically. As a result, proteins and other food wastes that are not completely digested or eliminated can assault the immune system and cause tremendous allergic reactions, fatigue and many other health problems. It also allows the Candida itself and bacteria to enter the bloodstream, from which it may find its way to other tissues, resulting in far-ranging effects such as soreness of the joints, chest pain, sinus and skin problems, etc." Source : BodyFixer.com, regarding Candida yeast in human infections. Very simply put, we think that many (not all) of the "Yellow Fungus" cases are a yeast infection in the digestive system that bearded dragons developed after treatment from antibiotics - something we all know can happen in humans, but until recently never put it together with this horrible disease we thought bearded dragons had!