英文關鍵字
allergy
background
bacteria
breathing
care
corona
coronavirus
covid
covid19
disease
doctor
epidemic
equipment
face
flu
girl
health
healthy
hygiene
ill
illness
infection
influenza
mask
medical
medicine
pandemic
patient
person
pollution
portrait
prevention
protect
protection
protective
respiratory
safety
sick
sickness
viral
virus
wearing
woman
young