Simple categories matching opportunistic:

• disease,
• microbe,
• agent,
• pest,
• infection,
• germ,
• process,
• creature,
• microorganism,
• bacteria,
• virus,
• organism,
• pathogen,
• illness,
• parasite,
• felid,
• ingredient,
• disorder,
• predator,
• feeder,
• condition,
• animal,
• carnivore,
• hunter,
• crime,

Members with property opportunistic:

• petty_theft,
• tuberculosis,
• cryptococcosis,
• pneumonia,
• intestinal_infection,
• kingfisher,
• bacteria,
• domestic_cat,
• legionella_bacteria,
• eel,
• toxoplasmosis,
• beetle,
• amoeba,
• candidiasis,
• tb,
• assault,
• diabetes,
• protozoan,
• measles,
• cancer,
• adenovirus,
• raven,
• fungi,
• crabs,
• heron,
• virus,
• klebsiella,
• bluegill,
• bronchitis,
• personal_theft,
• harmful_bacteria,
• respiratory_illness,
• malaria,
• european_starling,
• coccidiomycosis,
• influenza,
• herpes,
• holdup,
• leopard,
• ant,
• cerebral_toxoplasmosis,
• herpes-virus_infection,
• lobster,
• lizard,
• hiv,
• raccoon,
• aspergillosis,
• major_infection,
• broken_bread,
• vaginal_candidiasis,
• cholera,
• emu,
• sars,
• mammal,
• herring,
• yeast_infection,
• sarcoma,
• syphilis,
• ferret,
• vehicle_burglary,
• vibrio,
• egyptian_mongoose,
• insect,
• clostridium,
• cyanobacteria,
• bacterial_infection,
• snapper,
• varicella,
• candida_yeast,
• ulcer,
• simple_cold,
• credit-card_fraud,
• cutaneous_cryptococcosis,
• worm,
• piracy,
• chaga_disease,
• theft,
• arctic_charr,
• giardia,
• bass,
• crow,
• burglary,
• herpes-zoster_shingles,
• respiratory_disease,
• regulator,
• cold,
• cmv_disease,
• cormorant,
• herpes-zoster_pneumonia,
• meningitis,
• candida_thrush,
• esophageal_candidiasis,
• pulmonary_cryptococcosis,
• common_raven,
• fox,
• gastropod_mollusc,
• parasitic_pneumonia,
• invasive_aspergillosis,
• cmv,
• cytomegalovirus_infection,
• algae,
• miscellaneous_theft,
• bird,
• merganser,
• snake,
• cutthroat_trout,
• pulmonary_tuberculosis,
• secondary_bacteria,
• staphylococcus,
• infection,
• peripheral_neuropathy,
• tumour,
• thrush,
• chest_infection,
• cat,
• viral_infection,
• genitourinary_infection,
• certain_cancer,
• lung_infection,
• recurrent_pneumonia,
• uncommon_bacteria,
• cmv_infection,
• resistant_tuberculosis,
• std,
• protozoa,
• coyote,
• starfish,
• yeast,
• common_cold,
• opossum,
• streptococcus,
• hepatitis_virus,
• flatworm,
• external_bacteria,
• varicella_zoster,
• oral_candidiasis,
• crustacean,
• cod,
• rubella_infection,
• listeriosis,
• ms,
• airborne_pathogen,
• persistent_thrush,
• vaccinia_virus,
• grub,
• pertussis,
• cytomegalovirus_cmv,
• bacterial_pneumonia,
• marmot,
• parasite,
• ciliate_protozoan,
• clark_nutcracker,
• spider,
• hawk,
• herpes-simplex_virus,
• parkinson_disease,
• auto_theft,
• wood,
• domestic_burglary,
• certain_virus,
• scabies,
• diving_beetle,
• ambrosia_beetle,
• cns_toxoplasmosis,
• diarrhoeal_disease,
• vehicle_theft,
• bivalve,
• pulmonary_tb,
• viral_hepatitis,
• fungal_infection,
• armed_robbery,
• robin,
• jay,
• canker_fungi,
• metazoan,
• latent_tuberculosis,
• beluga_whale,
• nematode,
• purse_theft,
• fish,
• wound_sepsis,
• lung_disease,
• sole,
• mugging,
• flu,
• pulmonary_aspergillosis,
• ebv,
• systemic_thrush,
• cytomegalovirus,
• legionella,
• carrier,
• mucocutaneous_candidiasis,
• serious_infection,
• typhoid,
• bream,
• dragonfly,
• possum,
• typhus,
• skunk,
• otter,
• shoplifting,
• oral_thrush,
• cns_infection,
• shark,
• mongoose,
• pediatric_septicemia,
• mink,
• resident_mammal,
• aspergillosis_pneumonia,
• fungus,
• hepatitis,
• invertebrate,
• aspergillus_mold,
• septicemia,
• striped_skunk,
• candida,
• mycobacterium,
• feral_dog,
• sponge,
• listeria,
• arthritis,
• tuberculosis_tb,
• plaice,
• cytomegalovirus_disease,
• lymphoma,