Secondary pulmonary infection by Fusarium solani and Aspergillus niger during systemic steroid treatment for COVID-19: A case report

Figure 2 Morphological findings of sputum taken on the twelfth hospital day. A: Black and white colonies were observed on blood agar/chocolate agar; B: Microscopic findings with lactophenol cotton blue stain (200 × magnification). Growth of multicellular, banana-like macroconidium, and clavate monocellular or bicellular small-sized conidiospore, were confirmed; C: Microscopic findings with lactophenol cotton blue stain (200 × magnification). Growth of smooth colored conidiophores and conidia, among which the conidiophores were protrusions from a septate and hyphae, with conidial heads appearing radially and splitting into columns (biseriate), were confirmed.