英文關鍵字
alarms
attention
background
bacteria
biohazard
border
catastrophic
concept
confirmed
continents
corona
coronavirus
country
dangerous
design
disease
dots
earth
epicenter
epidemic
flu
global
graphic
health
illness
infect
infection
infographic
land
map
medical
microbiology
motion
outbreak
pandemic
planet
pneumonia
protection
quarantine
red
region
spread
virus
world