19
air
asian
child
childhood
corona virus
coronavirus
covid
covid19
dangerous
disease
dust
epidemic
face
girl
good
happy
hazard
health
home
hygiene
ill
illness
infection
infectious
influenza
japan
kid
little
mask
medical
outbreak
people
pollution
prevention
problem
protect
protection
quarantine
reject
safe
school
sick
sick child
sickness
stop
very
virus