Related Clues:
- Virus fighter
- ___ count (HIV patient's concern)
- Antigen attacker
- Immune system fighter
- Key part of the immune system
- Immunity agent
- Germ fighter
- Certain lymphocyte
- Immune-system unit
- Immune response component
- Protective protein in blood which destroys inimical substances
- Resistance fighter perhaps against killing?
- Foreigner targeted in breakdown of Trojan horse perhaps
- Bacterium binder
- Immune system defender