ailment
bacteria
bacterium
biological
bug
cell
corona
coronavirus
coronaviruses
disease
flu
germ
germs
graphic
group
illness
illustration
infection
mers
microbe
microorganism
microorganisms
microscopic
multiple
novel
organism
outbreak
pandemic
parasite
pathogen
plague
prevention
quarantine
sars
season
sickness
transmission
treatment
vaccination
vaccine
viral
virions
virus
viruses
weapon
wuhan