Modifiers matching pathogen:

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

Simple categories matching gastrointestinal:

• symptom,
• blockage,
• reaction,
• disorder,
• cancer,
• inflammation,
• event,
• investigation,
• endoscopy,
• procedure,
• disease,
• cause,
• proteinase,
• lesion,
• motility,
• malignancy,
• tumor,
• malady,
• response,
• pathology,
• discomfort,
• surgery,
• condition,
• complaint,
• testing,
• germ,
• problem,
• complication,
• tumour,
• system,
• infection,
• illness,
• pathogen,
• abnormality,
• upset,
• dysfunction,