a person of thick contact
bad health
catching
closet
concentrated contact person
consultation
copy space
corona
coronavirus
cough
covid19
cute
dense
disease
doctor
droplet infection
examination
grandfather
health
hospital
illness
illustration
illustrations
infection route
infection spread
infectious disease
inquiry
inspection
interview
male
malignant virus
margin
mask
medical
medical care
medical examination
men
older brother
patient
patients
people
person
pneumococcus
pneumonia
poor health
prevention
route of infection
simple
source of infection
spread of infection
streptococcus pneumoniae
symptom
symptoms
test
vector
virus
waiting
waiting room
your brother