R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Science Q. Robert Koch worked on (A) Tuberculosis (B) Cholera (C) Diabetes (D) Malaria 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) Tuberculosis You must be Logged in to update hint/solution 💬 Discussion 💬 Comment