M Mr. Dubey 🎓 Coach ⭐ 103.71K Points 📊 Science Q. Polio vaccine was developed by (A) Jonas salk (B) J C bose (C) John sleeman (D) Henry william 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) John sleeman You must be Logged in to update hint/solution 💬 Discussion 💬 Comment