Class RICKETTSIA-OR-CHLAMYDIA

An organism intermediate in size and complexity between a virus and a bacterium, and which is parasitic within the cells of insects and ticks. Included here are all the chlamydias, also called 'PLT' for psittacosis-lymphogranuloma venereum-trachoma.
Subclass-Of: Organism
Further-Modelling: 'parasitic' should be a kind of 'lives-in'.
Axioms:
(Slot-Value-Type Rickettsia-Or-Chlamydia
                 Cause-Of
                 Pathologic-Function)

(=> (Rickettsia-Or-Chlamydia ?Self)
    (And (Exists (?A)
                 (And (Parasitic ?Self ?A)
                      (Cell ?A)
                      (Exists (?B)
                              (And (Prime-Component-Of ?A ?B)
                                   (Or (Insect ?B) (Tick ?B))))))
         (Exists (?C)
                 (And (Reference-Location-Of ?Self ?C)
                      (Biologically-Active-Substance ?C)))))