Black fungus infection is also known as mucormycosis. It is not an new infection but the number of cases are increased due to Covid -19. Mucormycosis dangerous fungal infection. It can also affect the face, infection nose, orbit of eye, or brain which is harmful for us. It is also found in soil, plants, manure and decaying fruits and vegetables. Your lungs are also affected by black fungus. This fungus lives throughout the world.