Historical clue formulations

• Vaccine pioneer Jonas — 2022-08-08
• Eponymous founder of a San Diego research institute — 2021-03-13
• San Diego's ___ Institute — 2020-09-26
• Physician Jonas — 2020-04-19
• Kind of vaccine — 2017-11-12
• Polio vaccine developer — 2015-01-14
• Bacteriologist Jonas — 2014-10-21
• La Jolla's ___ Institute for Biological Studies — 2011-11-04
• Jonas who developed a polio vaccine — 2011-09-13
• ___ vaccine — 2008-07-04
• Virologist Jonas — 2005-02-13
• Polio vaccine developer — 2004-12-21
• ___ vaccine — 2004-04-15
• Polio vaccine developer — 2002-12-23
• Polio vaccine developer — 2002-07-23
• Scientist who won a 1977 Presidential Medal of Freedom — 2001-09-07
• Polio scientist — 2001-07-08
• ___ Institute for Biological Studies — 2000-12-23
• Polio vaccine pioneer — 1999-06-06
• Polio vaccine developer — 1996-08-14
• Polio vaccinator — 1995-11-28
• Polio vaccine discoverer — 1995-06-14
• _____ vaccine — 1995-05-21
• Polio pioneer — 1995-02-17