Related Clues:

• Chemist tears up letters
• Jonas --, US virologist who developed a vaccine against polio
• French scientist's gone over street there, heading North
• Famed vaccine developer
• Big name in polio research
• 1976 Olympics decathlon gold medalist
• Physician who received the Presidential Medal of Freedom in '86
• Jonas of vaccines
• Wren maybe briefly met by the Queen's old physician
• Vaccine visionary
• Namesake of a CUNY med school scholarship
• Doctor awarded the Presidential Medal of Freedom by Reagan
• Chemist no longer having hesitation about uranium
• Star of E! network's "I Am Cait"
• Eponymous virologist