英文關鍵字
2019ncov
allergy
bacterial
biohazard
caucasian
china
coronaviridae
coronavirus
cough
covid
covid19
danger
disease
epidemic
eyes
health
healthy
infected
infection
infectious
look
looking
male
man
mask
medic
medical
men
ncov
outbreak
panic
pollution
prevention
protect
protection
protective
quarantine
respirator
respiratory
teenager
virus
wearing
white
young
youth