Modifiers matching pathogen:

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

Simple categories matching opportunistic:

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