Title: Jonas Salk
Subjects: Poliomyelitis vaccine, Virologists, Vaccination, Poliomyelitis, Juvenile literature, Biography, JUVENILE NONFICTION / Biography & Autobiography / Historical, JUVENILE NONFICTION / Biography & Autobiography / General, Virologist, Salk, jonas, 1914-1995, Poliomyelitis, juvenile literature, United states, biography, United states, biography, juvenile literature
Places: United States
People: Jonas Salk (1914-)