When immunocompromised due to cancer treatment are infected with the new coronavirus, the virus continues to remain in their bodies. Treatment tends to be longer, according to the National Institute of Infectious Diseases and other organizations.
Research group decided to create new draft guidelines to support the medical care of these patients. It has been pointed out that treatment may take a long time, and that the virus may mutate into a ''resistant virus'' that is less effective against drugs during prolonged treatment.