英文關鍵字
2019ncov
adult
analysis
background
bacterium
biology
black
caucasian
chemistry
china
confident
corona
coronavirus
costume
covid
covid2019
danger
diagnostic
disease
epidemic
face
fear
flu
girl
global
hand
health
illness
infection
isalation
isolated
mask
medical
millennials
model
molecule
organism
pandemic
professional
protection
protective
quarantine
respirator
respiratory
sample
sars
selfisalation
sick
stop
suit
vaccine
virus
woman