my new suggestions
 

i think giant microbes needs to make a few uber cool pathogens. they are: trichinosis, guinea worm, tapeworm, marburg, vCJD, yellow fever, tick, mimivirus(weird name cool virus), lassa fever, rift valley fever, ringworm, smallpox, rotavirus, leprosy, cat scratch disease, sars, parvo, and distemper. these would make great giant microbes.