Historical clue formulations

• Small component of an immune response — 2024-09-03
• Component of the immune system — 2024-06-23
• Infection fighter — 2023-03-26
• Immune system agent — 2022-10-09
• Agent of immunity — 2022-05-06
• Immune system component — 2021-11-07
• Cancer fighter, for short — 2021-05-09
• Immune system defender — 2019-02-14
• Immune system component — 2016-12-23
• Infection fighter — 2016-01-31
• Immune system agent — 2012-07-31
• Certain lymphocyte — 2012-01-20
• Antigen attacker — 2010-10-30
• Immune system agent — 2010-01-13
• Antigen attacker — 2009-02-20
• Immune system agent — 2009-02-16
• Immune system lymphocyte — 2008-10-06
• Kind of count in a blood test — 2006-09-27
• Antigen identifier — 2006-09-23
• Immune system agent — 2004-06-10
• Antigen disabler — 2003-06-07
• Immune response orchestrator — 2002-03-10
• Immune response orchestrator — 1999-12-11