Modifiers matching exotoxin:

• microbial,
• bacterial,

Simple categories matching microbial:

• contaminant,
• nutrition,
• shape,
• pathogen,
• organism,
• property,
• pathology,
• component,
• derivative,
• toxin,
• agent,
• animal,
• activity,
• process,
• material,
• cell,
• molecule,
• group,
• trait,
• growth,
• composition,
• compound,
• protein,
• contamination,
• cause,
• eukaryote,
• aggregate,
• drug,
• disease,
• predator,
• disorder,
• infection,
• feature,
• system,
• characteristic,
• parasite,
• species,
• product,
• antigen,
• flora,
• structure,
• reaction,
• exotoxin,