Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. Yes mycobacterium fortuitum is the environment organism. It is same as tuberculosis bacteria. But it is more sensitive to the drug than tuberculosis bacteria. I advice you should take the appropriate anti TB drugs. It will mostly cured in the 2 month period if the drugs is taken properly. Please maintian good local hygiene at wound area. This will help cure the TB at earliest. Good dressing under your doctors guidance is advisable. Blood transfusion never causes any infections, as this blood transfusion is screened before giving to anybody. It will never damage any organ or nor it will spread to anywhere if the proper antiTB drugs is given. No it is not at all life threatening, only thing you have to take the drug on good time. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM.