adaptive
antibodies
art
ascuired
bacterial
bacterium
body
color
concept
contour
defence
design
disease
filled
graphic
health
health care
health protection
icon
illustration
immune system
immunity
immunology
infection
isolated
line
linear
medicine
micro
microbiology
organism
pandemic
parts
pictogram
power
prevention
protection
protective
shield
sign
style
symbol
treatment
vaccination
virus
web