STRAIN
| Date | Clue |
|---|---|
| 2025-03-19 | Common eye ailment |
| 2022-08-03 | Genetic variant |
| 2021-03-28 | Distinct melodic segment |
| 2021-03-07 | Go all out |
| 2019-05-11 | Variation |
| 2009-11-08 | Group of viruses |
| 2008-02-03 | Lineage |
| 2007-05-06 | Virus variety |
| 2003-11-25 | Cause of muscle ache |
| 2001-11-28 | Muscle problem |
| 1999-06-12 | Back problem |
| 1997-06-11 | Push beyond limits |
| 1996-04-08 | Exertion |