alphabet
block
blue
child
childhood
contagious
contaminate
contaminated
disease
educate
elementary
epidemic
flu
germs
green
h5n1
hazard
health
healthcare
hygiene
ill
illness
infect
infectious
influenza
isolated
kid
kindergarten
medical
medicine
pandemic
pediatric
pediatrician
preschool
primary
red
risk
sanitize
school
sick
sickness
spread
swine
toddler
toy
transmission
transmit
virus
wooden