The Spread of COVID-19 has become health challenge worldwide. On Jan, 2020, it was decaled as global health emergency. The WHO released certain guidelines for safety, but they were only precautionary measures. As per July, 2022, there have been 60 Crore active cases globally and increasing. Curing it is equally important as Correct and accurate diagnostic for the disease which can be effective for rapid recovery and stop spreading it more. The main goal of this book is check severity of disease in a patient’s body. In order to achieve the goal, use of machine learning technique is discussed. Using this we can check how severely the disease effect the body which the help the heath workers to determine the treatment plan for the patient.