antibiotic
bacteria
book
bronchitis
cartoon
chains
character
clever
coccus
contamination
cute
disease
education
emoticon
emotion
epidemy
expression
funny
geek
graduate
happy
illustration
infection
learner
mascot
microbe
microbial
microorganism
microorganisms
organism
pandemic
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pencil
pneumococcal
pneumoniae
prophylaxis
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pus
pyogenes
pyogenic
scarlet fever
school
skill
smart
smile
stationery
streptococcus
student
tonsillitis