| 2024-09-03 | Small component of an immune response |
| 2024-08-08 | Immune system agent |
| 2024-06-23 | Component of the immune system |
| 2023-03-26 | Infection fighter |
| 2022-10-09 | Immune system agent |
| 2022-05-06 | Agent of immunity |
| 2021-11-07 | Immune system component |
| 2021-05-09 | Cancer fighter, for short |
| 2019-02-14 | Immune system defender |
| 2017-12-03 | Immune system component |
| 2016-12-23 | Immune system component |
| 2016-01-31 | Infection fighter |
| 2013-06-02 | Infection fighter |
| 2012-07-31 | Immune system agent |
| 2012-01-20 | Certain lymphocyte |
| 2010-10-30 | Antigen attacker |
| 2010-01-13 | Immune system agent |
| 2009-02-20 | Antigen attacker |
| 2009-02-16 | Immune system agent |
| 2008-10-06 | Immune system lymphocyte |
| 2006-09-27 | Kind of count in a blood test |
| 2006-09-23 | Antigen identifier |
| 2004-06-10 | Immune system agent |
| 2003-06-07 | Antigen disabler |
| 2002-03-10 | Immune response orchestrator |
| 1999-12-11 | Immune response orchestrator |