Mycoplasma fermentans

Mycoplasma genitalium

Mycoplasma hominis

Mycoplasma orale

Mycoplasma pneumoniae

Mycoplasma salivarium

Naegleria fowleri

Neisseria gonorrhoeae

Neisseria meningitidis

Nipah henipavirus

Nitrobacter Species

Nitrosomonas oligotropha