"Immunosuppressant medications" are drugs that reduce or weaken the immune system, which is the body's defense system against infections and diseases. These medications are often used to prevent the immune system from attacking and damaging transplanted organs, or as treatment for conditions where the immune system mistakenly attacks healthy tissues in the body.
Full definition
Your veterinarian will prescribe a treatment plan that is aimed at attempting to counteract the body's immune system response by suppressing the immune system
with immunosuppressant medications.
In the past, the virus usually only developed into brain disease in individuals with suppressed immune systems, such as AIDS patients and organ transplant recipients
on immunosuppressant medications.