Use the drop-down tool to select the correct answer. ✔ Edward Jenner
developed the vaccine for smallpox.

✔ Louis Pasteur
came up with a process to keep wine and milk from spoiling.

✔ Paul Erlich
developed the treatment Salvarsan, which laid the foundation for future antibiotics.

✔ Alexander Fleming
is credited with inventing penicillin.

✔ Florence Nightingale
was a nurse who changed the course of the nursing profession.