英文關鍵字
coronavirus
emotion
pandemic
social
distancing
hygiene
mask
nurse
protection
doctor
laboratory
sterile
measures
ppe
sarscov2
covid
corona
crisis
equipment
testing
epidemic
lockdown
quarantine
medical
hospital
virus
science
sars
disease
global
healthcare
prevention
spread
expression
female
illness
isolated
medicine
n1h1
respiratory
sickness