activated
activation
adaptive
agglutination
alternative
attack
bacteria
binding
c5
c5b
c6
c7
c8
c9
cell
chemotaxis
classical
cluster
clustering
complement
complex
damage
defense
disease
enhance
enhancer
health
healthy
illustration
immune
immunity
immunology
infection
innate
kill
killer
lysis
medicine
membrane
pathogen
pathway
protein
scheme
simple
system
virus
viruses