structure of mucor mold, black fungus

fungus mucor mucormycosis nasal fungi mold illustration allergic mycology mycosis nose pain paranasal prevention respiratory rhinosinusitis science sickness silhouette sinus sinusitis soil plant microscopic microbial sporangiophore bread chronic disease drawing medical immunocompromised fungal sporangium maxillary macro hand drawn human illness medicine immune deficiency microbe infection microorganism inflammation black mould pen paper texture