Modifiers matching pathogen:

• intracellular,
• multiple,
• harmful,
• latent,
• communicable,
• fecal,
• transmissible,
• causal,
• virulent,
• gi,
• atypical,
• enteric,
• bacterial,
• invasive,
• unicellular,
• uncommon,
• possible,
• causative,
• foreign,
• microbial,
• infective,
• viral,
• viable,
• intercellular,
• dangerous,
• macromolecular,
• urinary,
• endogenous,
• ubiquitous,
• opportunistic,
• detrimental,
• microscopic,
• serious,
• infectious,
• natural,
• electronic,
• environmental,
• organic,
• pulmonary,
• hazardous,
• complex,
• small,
• perinatal,
• deadly,
• nasty,
• eukaryotic,
• airborne,
• biological,
• aquatic,
• hardy,
• zoonotic,
• cellular,
• select,
• resident,
• exogenous,
• variable,
• outside,
• respiratory,
• nosocomial,
• related,
• persistent,
• contagious,
• large,
• canine,
• rare,
• real,
• conventional,
• tiny,
• stable,
• parasitic,
• obligate,
• vaginal,
• systemic,
• pediatric,
• out,
• waterborne,
• chronic,
• undesirable,
• intestinal,
• smaller,
• important,
• lethal,
• potential,
• new,
• single,
• sensitive,
• gastrointestinal,
• diarrheal,
• external,
• relevant,
• animal,
• larger,
• unusual,
• resistant,
• carcinogenic,
• common,
• minute,
• major,
• diverse,
• neurotropic,
• significant,
• toxic,
• artificial,
• anaerobic,
• ocular,
• diarrhoeal,
• mutable,
• extracellular,
• secondary,

Simple categories matching opportunistic:

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