英文關鍵字
adult
aged
care
caucasian
clinic
coronavirus
covid
covid19
doctor
drug
elderly
female
flu
getting
health
hospital
illness
immunization
infection
influenza
injection
mask
mature
medical
medication
medicine
nurse
old
pandemic
patient
pensioner
people
pneumonia
prevention
professional
protection
receiving
retired
safety
senior
sick
syringe
treatment
vaccination
vaccine
virus
woman