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