Mycoplasma hominis

Mycoplasma orale

Mycoplasma pneumoniae

Mycoplasma salivarium

Mycoplasma spp

Naegleria fowleri

Neisseria gonorrhoeae

Neisseria meningitidis

Nipah henipavirus

Nitrobacter Species

Nitrosomonas oligotropha

Norovirus Genogroups I and II