Modifiers matching prodrome:

• viral,
• nonspecific,

Simple categories matching nonspecific:

• metabolite,
• protease,
• symptom,
• drug,
• stimulus,
• condition,
• therapy,
• event,
• cell,
• requirement,
• enzyme,
• complaint,
• component,
• emotion,
• agent,
• cause,
• proteinase,
• process,
• entity,
• defence,
• prodrome,
• mechanism,
• analgesic,
• abnormality,