From what you have told me, your brother is quite ill. I am surprised that he would have both blastomycosis and mucormycosis. Blastomycosis is caused by the fungus Blastomyces dermatitidis . It is an uncommon infection that occurs mostly in certain areas of North America, mainly the southeastern and south central United States, a small area in the Midwest, a small area in the Northeast and parts of Canada that border the Great Lakes. There have also been cases outside the United States in Africa, India and the Middle East.
Blastomycosis is usually a slow-growing infection involving the lungs and the skin.
Sometimes, blastomycosis causes an acute illness resembling flu or pneumonia. In patients with weakened immune systems due to AIDS and other diseases, blastomycosis can spread to all areas of the body, causing a rapidly fatal illness. Blastomycosis does not spread from person to person. Treatment is with the prolonged use of antifungal drugs. You should not rely on this information as a substitute for personal medical attention, diagnosis or hands-on treatment.