acid
afb
aggression
aid
bacilli
bacteria
bacterium
biology
care
cell
colony
dirty
disease
epidemic
fast
flu
health
human
illness
infection
medical
medicine
microbe
microbiology
microscopic
nocuous
organic
organism
outbreak
pathogen
poisonous
red
research
science
scientific
sickness
spread
stain
system
tb
toxic
tuberculosis
virus