Covid-19: Which test is required to detect black fungus?

Amid the Coronavirus pandemic, an increase in cases of mucormycosis, also known as the black fungus is being registered in large numbers. This is a rare infection seen in patients who are on medication for Covid-19 or recovered from it. States have begun to panic as the number of black fungus cases is rising slowly but steadily across the country. Which test is required to detect black fungus? Know from experts in this video.