英文關鍵字
1080p
2019ncov
animation
awareness
background
bacteria
bio
biology
china
concept
contagious
contamination
corona
cough
covid
danger
dangerous
deadly
diagnosis
disease
disinfect
epidemic
fever
flu
global
graphics
hazard
health
infection
lethal
lockdown
lung
motion
outbreak
pandemic
pneumonia
protection
quarantine
respiratory
risk
safety
science
sick
sickness
symptoms
text
vaccination
vaccine
video
viral
virus
warning
world