Some symptoms of the lung fungus that causes histoplasmosis are fever, head and muscle aches, chills, unproductive cough and chest discomfort, according to the Mayo Clinic. The symptoms of blastomycosis are similar, and there is also joint pain, according to the Centers for Disease Control and Prevention.
In severe cases of blastomycosis, the skin and the bones are affected. These symptoms include bone pain, back and chest pain, and ulcerated skin. In many cases of both histoplasmosis and blastomycosis, the symptoms are very mild or silent, according to the Mayo Clinic, the Minnesota Department of Health and the CDC. Neither histoplasmosis or blastomycosis is communicable.
Blastomycosis is caused when the patient breathes in the spores of the Blastomyces dermatitidis fungus, explains the Minnesota Department of Health. The spores are released when the ground is disturbed. This fungus is found in moist woods in the midwestern, southeastern and south-central United States and parts of Canada. Blastomycosis is treated with a six-month course of anti-fungal medications. The patient usually recovers completely.
The histoplasmosis fungus most often lives in the guano of bats or birds. The spores are also breathed in when the ground is disturbed, and the spores become airborne.