Final answer:
Edward Jenner is the physician first associated with vaccination.
Step-by-step explanation:
Edward Jenner was a British physician and scientist who is widely credited with the development of the smallpox vaccine, a groundbreaking achievement in the history of medicine. The smallpox vaccine marked the first successful use of vaccination, a term coined by Jenner.
The physician first associated with vaccination is Jenner. English doctor Edward Jenner discovered the process of vaccination in 1796. He observed that people who became infected with cowpox did not get sick from smallpox. Jenner conducted an experiment where he transmitted cowpox to a child, which protected them from smallpox.