Simple categories matching opportunistic:

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

Members with property opportunistic:

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