structure of mucor mold, black fungus, bread mold fungi

mold fungus mucormycosis illustration mucor brain nasal skin complication immune deficiency infection microbe microbial respiratory treatment sarscov2 sporangium mycology human fungal disease covid19 closeup medicine rhinocerebral paranasal microorganism microscopic black inflammation science pulmonary allergic sinus bread macro sinusitis medical mycosis structure morphology hand drawn drawing spores hypha mycelium sporangiophore fungi microscope