axioms of 'protozoan vaccine'

[zhengj2007]

protozoan vaccine = 'immunizes against microbe' some Eukaryota

It is not correct since protozoan is a type of single-celled eukaryotic microorganism. So, it can be subClassOf 'immunizes against microbe' some Eukaryota but not equivalent.

Current VO only contains parasite vaccine. Propose to change it to: parasite vaccine, and it equivalent to 'immunizes against microbe' some 'parasite organism'

Besides, the related terms 'bacterial vaccine' and 'vaccine for pathogen' can be improved as well. 'bacterial vaccine' = 'immunizes against microbe' some Bacteria 'vaccine for pathogen' = 'immunizes against microbe' some (organism and 'has disposition' some 'pathogen desposition'