2019ncov
3d
abstract
bacterial infection
bacterium
break
building
china
city
collapse
corona
coronavirus
covid19
crack
crash
crisis
danger
dead
destroy
destruction
disease
expand
expansion
flu
fracture
global
idea
impact
infection
medical
medicine
mers
molecule
pandemic
protection
render
rendering
respiratory
risk
science
skyscraper
sphere
stone
strong
structure
syndrome
terminated
treatment
vaccine
virus
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