The immune system fights HIV by killing the opportunistic infections.
The immune system fights germs.
Immune system
body immune system
Immune system
Immune system.
The immune system, primarily.The immune system.Really...
Oh yes. Your immune system is what fights infections and with out your immune system you will get all kinds of infection and it can be fatal.
Soldiers(bodycells)
"immune"
fights off infections
This system is the immune system.
immune system