What are the immune boosters that help in preventing mucormycosis post-COVID in a diabetic patient? by iCash4You | Jul 25, 2021 | Sell My Diabetic Test Strips, Yes! Selling Your Diabetic Test Strips Is Legal! Mucormycosis is a rare fungal infection caused by a group of molds called mucromycetes. It is also known as black fungus. This content was originally published here.