aids
amoeba
background
bacteria
bacterium
biology
cartoon
character
collection
color
colored
colorful
creature
cute
cyclops
danger
dangerous
disease
drawing
epidemic
eyes
face
fauna
flu
funny
genetic
germ
icon
illness
illustration
infection
influenza
isolated
micro
microbe
microbiology
microscopic
monster
mouth
organism
parasitic
science
set
small
teeth
ugly
unusual
virus
white
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