Last seen in:
- Thomas Joseph - King Feature Syndicate - Jun 14 2014
- L.A. Times Daily - May 14 2013
- Wall Street Journal - Aug 3 2012 - August 3, 2012 - Dual Personalities
- Ink Well xwords - Mar 9 2012
- New York Times - Feb 20 2011
- Thomas Joseph - King Feature Syndicate - Jan 22 2010
- Thomas Joseph - King Feature Syndicate - Aug 2 2008
- Thomas Joseph - King Feature Syndicate - Oct 27 2007
- Thomas Joseph - King Feature Syndicate - Sep 25 2007
- Thomas Joseph - King Feature Syndicate - Jul 12 2005
Related Clues:
- Polio vaccine developer
- See 7-Down
- Kind of vaccine
- Lament
- Oral vaccine developer
- Polio scientist
- Founder of microbiology
- Scientist who won a 1977 Presidential Medal of Freedom
- Vaccine developer Jonas
- Vaccine developer
- Sabin's rival
- Polio fighter
- Polio vaccine discoverer
- Inoculation innovator
- Polio conqueror