英文關鍵字
pandemic
epidemic
nurse
hand
blue
medical
glove
applying
cotton
pad
patch
patient
arm
injection
vertical
vaccination
immunization
virus
prevention
medicine
coronavirus
covid19
disease
illness
infection
intramuscular
treatment
healthcare
protection
doctor
clinic
people
cure
dose
shot
unrecognizable
indoors
closeup
interior
person
adult
female