Question

What happens when virus attacks person's immune system of body?​

Answer 1

Answer:

There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection.Although for most people COVID-19 causes only mild illness, it can make some people very ill. More rarely, the disease can be fatal. Older people, and those with pre- existing medical conditions (such as high blood pressure, heart problems or diabetes) appear to be more vulnerable

Answer 2

Answer:

It makes the person weak, as Immune system plays a key role in fighting against the viruses, but If that is only infected then, the person may die also.