adult
anesthetic
antibodies
arm
asian woman
background
care
caucasian
clinic
closeup
cutout
doctor
doctor patient
dose
female
flu
glove
hand
health
health care
hospital
illness
immunity
influenza
injecting
injection
medic
medical
medical instrument
medical syringe
medicine
needle
nurse
patient
people
pharmaceutical
physician
polio
professional
protection
sterile
syringe
tag label
tetanus
tuberculosis
vaccination
vaccine
white
women
worker