| Clue | Source | Date |
|---|---|---|
| Promotional image? | Universal | 11 Jan 2022 |
| Insult from a team supporter? | Wall Street Journal | 01 Aug 2020 |
| Follow-up vaccination | The Washington Post | 29 Aug 2018 |
| Follow-up vaccination | LA Times Daily | 29 Aug 2018 |
| Follow-up vaccination | ||
| Immunity enhancer | New York Times | 04 Dec 2016 |
| Immunity enhancer | ||
| Follow-up vaccination | ||
| Follow-up vaccination | ||
| Immunological follow-up | ||
| Follow-up vaccination | ||
| Doctor's dig? | ||
| Inoculation | ||
| Shoplifter's snort of whiskey? | ||
| Follow-up vaccination | ||
| Injection protection |