2019
2019ncov
antimicrobial
bacteria
bacterium
beware
bio
biology
clinic
coronavirus
cov
covid
covid 19
danger
diagnostic
disease
epidemic
forbidden
germ
healthy
illness
lab
micro
microbe
microorganism
microscopic
ncov
organism
pandemic
parasite
placard
precautions
risks
sick
symptoms
treatment
viral
virion
virus