Modifiers matching pathogen:

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

Simple categories matching respiratory:

• reflex,
• infection,
• tissue,
• death,
• disease,
• condition,
• difficulty,
• treatment,
• protection,
• cancer,
• problem,
• depressant,
• illness,
• disorder,
• secretion,
• complication,
• pathogen,
• gas,
• symptom,
• interval,
• passage,
• virus,
• cell,
• machine,
• control,
• product,
• component,
• support,
• equipment,
• sound,
• effort,
• service,
• cover,
• organ,
• drug,
• pathology,
• carcinogen,
• chain,
• toxin,
• hazard,
• muscle,
• system,
• sensitivity,
• tube,
• connector,
• signal,
• care,
• event,
• allergen,
• structure,
• failure,