英文關鍵字
awareness
bacteria
care
caucasian
caution
contagious
corona
coronavirus
covid19
danger
disease
epidemic
face
facial
flu
guy
healthcare
human
hygienic
illness
indoor
infection
infectious
influenza
isolated
male
man
mask
medical
medicine
person
phone
prevention
problem
protect
protection
protective
quarantine
respirator
respiratory
risk
safety
serious
sick
stand
surgical
teen
virus
wear
youth