The deadly COVID-19 virus is more dangerous to diabetic patients, and people whose immunity is weak. The second wave has increased the complications of pre-existing illnesses. With the rise in COVID cases, India is also witnessing a surge in mucormycosis or black fungus infection. Black Fungus is mostly affecting people who previously get COVID-19 infections and were diabetic patients. Aaj Tak talks with medical experts to understand it in more depth. Watch the video to know more.