airborne
allergy
background
black
boy
child
cleanliness
cold
cough
daily necessities
disposable
disposable mask
droplet infection
droplets
elementary school student
fear
flu
hay fever
health
hygiene
hygiene supplies
illness
infect
infection
japanese
liquid
mask
measures
medical care
medical supplies
pathogen
prevention
sneezing
splash
splashes
spread
surgical mask
transparent
virus
water
water droplets