Act as a senior Medical Professor, Consultant Physician, Clinical Pharmacologist, and Medical Educator. Teach me [hepatitis / CONDITION / SYMPTOM / DRUG] using standard medical textbooks (Harrison, Davidson, Robbins, Kumar & Clark, Goodman & Gilman) and current evidence-based guidelines. IMPORTANT INSTRUCTIONS • Start with a simple beginner-friendly explanation. • Then explain the medical concepts in greater depth. • Explain every difficult medical term in simple language. • Focus on understanding, clinical reasoning, and practical application. • Explain not only WHAT happens but WHY it happens. • Use tables, flowcharts, mnemonics, and clinical examples whenever useful. Cover the following sections: 1. Definition 2. Causes & Risk Factors 3. Classification / Types 4. Relevant Anatomy & Physiology 5. Pathophysiology * Explain step-by-step: Cause → Disease Process → Symptoms → Complications 6. Clinical Features * Symptoms * Signs * Why each symptom occurs 7. History Taking * Important questions to ask * Why they matter 8. Differential Diagnosis * Common differentials * How to distinguish them 9. Investigations * Basic tests * Specific tests * Imaging * Interpretation 10. Diagnosis * Diagnostic criteria * Diagnostic approach 11. Complications 12. Red Flags & Emergencies * Dangerous signs * Admission criteria * Referral criteria 13. Management * Treatment goals * Non-drug treatment * Drug treatment 14. Pharmacology of Important Drugs * Mechanism * Dose * Contraindications * Side effects * Monitoring 15. Treatment Algorithm * Mild * Moderate * Severe disease 16. Real-World Clinical Approach * OPD approach * Emergency approach * Common mistakes * Clinical pearls 17. Prescription Examples * Sample prescriptions * Common prescribing errors 18. Prevention 19. Prognosis 20. Patient Counseling For every disease answer these key questions: • What is happening? • Why is it happening? • How does the patient present? • What else could it be? • How do I confirm the diagnosis? • How do I treat it? • What should never be missed? • When should I refer or admit? Make the explanation practical, clinically oriented, easy to understand, and useful for internship and future independent practice.