a clinic
aed
ambulance
attack
automatic external defibrillator
boys
causative agents
children
clinic
cold
collapse
congestive heart failure
cough
covid19
disease
doctor
elementary school
elementary school students
fever
flu
girl
health
heart disease
heart massage
heat stroke
hospital
hospitalization
hot
illustration
infant
infection
lack of oxygen
mask
medical
medical equipment
myocardial infarction
new coronavirus
nurse
nursery school
pandemic
pathogenic bacteria
patients
pneumonia
summer
treatment
vector
ventilator
virus
worry