Volume 28, Number 3—March 2022
Photo Quiz
Photo Quiz
Who is this person?
Here is a clue: he made the oral polio vaccine.
Who is he?
A) Edward Jenner
B) Albert Bruce Sabin
C) Robert Koch
D) Jonas Edward Salk
Decide first. Then turn the page.
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Page updated: February 04, 2022
Page reviewed: February 04, 2022
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