Vaccination was discovered by:

A. Baird
B. Edward Jenner 
C. Roentgen
D. None of these

🧠 Explanation:

Edward Jenner discovered vaccination, revolutionizing medicine. For medical students, this highlights medical history, making it a key topic for studying health science, immunology, and public health. Vaccines prevent diseases. Understanding this ensures knowledge of medical advancements. It’s essential for analyzing medical history, biology, and health sciences. Studying Jenner’s discovery offers insights into how vaccines save lives, crucial for medicine, biology, and public health.