Euglena
adenovirus
aerobe
aerobic bacteria
amoeba
anaerobe
anaerobic bacteria
animalcule
bacillus
bacterium
bug
coccus
colon bacillus
diatom
disease-producing microorganism
dyad
echovirus
enterovirus
filterable virus
flagellate
fungus
germ
gram-negative bacteria
gram-positive bacteria
microbe
microorganism
microspore
microzoa
mold
monad
nematode
nonfilterable virus
paramecium
pathogen
picornavirus
protozoa
protozoon
reovirus
rhinovirus
rickettsia
salmonella
saprophyte
spirillum
spirochete
spore
sporozoon
staphylococcus
streptococcus
tetrad
triad
acidophil
acidophile
bacteroid
calymmatobacterium
diplococcus
eubacteria
eubacterium
francisella
genus calymmatobacterium
genus francisella
gonococcus
legionella
legionella pneumophilia
neisseria gonorrhoeae
nitrobacterium
penicillin-resistant bacteria
probiotic
probiotic bacterium
probiotic flora
probiotic microflora
pus-forming bacteria
rod
superbug
true bacteria
algae
bacilli
cell
chemical
contaminant
contamination
infection
insect
microorganisms
organism
parasite
particle
pest
poison
toxin
virus
worm
yeast
Algeria
Assyria
Elyria
Iberia
Liberia
Nigeria
Siberia
Syria
cafeteria
criteria
diphtheria
listeria