Jonas Salk, American Virologist

---

Size: 3009px × 3520px
Location:
Photo credit: © Science History Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., 1914, 1995, 20th, america, american, bw, century, famous, history, jonas, male, man, medical, microbiologist, microbiology, person, personality, photo, polio, portrait, research, researcher, salk, usa, vaccine, virologist, virus