Chlamydiaceae (all species)

Chlamydophila abortus

Chlamydophila felis

Chlamydophila pneumoniae

Chlamydophila psittaci

Classical swine fever virus

Clavibacter michiganensis Sub-species michiganensis

Clostridium tetani

Columbid circovirus

Columbid Herpesvirus 1

Coxiella burnetii

CPPV (carnivore protovarvovirus)