Chief Minister Arvind Kejriwal on Monday said there are around 500 cases of black fungus or mucormycosis in Delhi and the city has been grappling with a shortage of Amphotericin-B injection used in its treatment. We have set up dedicated centres for the treatment of black fungus at Lok Nayak Hospital, GTB Hospital and Rajiv Gandhi Super Specialty Hospital but we do not have drugs.. We did not get the injections on Sunday, he told reporters. Four to five injections per patient per day are used in the treatment of the fungal infection. There are around 500 cases of black fungus in Delhi at present, he said, adding Delhi has been receiving around 400 to 500 injections per day.