autumn
back to school
backpack
bag
book
briefcase
candid
care
child
children
city
disease
distance
educate
education
epidemic
face
family
girl
infect
kid
kindergarten
knowledge
learning
lifestyle
little
mask
medical
pandemic
pathogenic
people
preschool
prevention
protection
public
pupil
quarantine
risk
safe
safety
school
schoolbag
schoolgirl
september
sick
study
virus
wearing