Mucormycosis: After black, white, first case of yellow fungus appears in Ghaziabad First case of yellow fungus has been reported from Ghaziabad. Black fungus is a complication caused by fungal infection. People catch mucormycosis by coming in contact with the fungal spores in the environment BusinessToday.In | May 24, 2021 | Updated 16:17 IST Mucormycosis is a fungal infection, which shows in a few COVID-19 patients during or post recovery After the country has seen a significant rise in the number of black and white fungus cases, also known as Mucormycosis, a patient has been diagnosed with 'yellow fungus' in the nation's capital region, unconfirmed reports suggest. The first case of yellow fungus was reported in Ghaziabad on Monday,