Abstract
The Novel coronavirus disease Covid-19 is a highly acute respiratory, viral pathogenic and pandemic disease caused by the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) virus which leads to a heavy loss of mankind worldwide. The origin of the virus is not well known as it confirms the transfer of disease from person to person. As the disease is a novel clinical trial of antiviral drugs only seems to be better for emergency pathogenic Covid-19 impacts. The after all effect of Covid-19 results severely elevated glucose levels causing Diabetes Mellitus. The various symptoms of black fungus also report a heavy impact on diabetic patients. The analysis of Covid-19, mucormycosis and Covid vaccines with respect to diabetes is described in the paper.