英文關鍵字
adult
allergy
bacteria
breath
care
contagious
contamination
coronavirus
danger
disease
doctor
epidemic
face
flu
germs
grippe
h1n1
health
healthcare
healthy
hospital
human
hygiene
ill
illness
immune
infected
infection
infectious
isolated
male
man
mask
medical
medicine
mers
pandemic
patient
people
person
prevention
protection
quarantine
safety
sars
sick
sickness
symptom
vaccine
virus
wearing