| Clue | Source | Date |
|---|---|---|
| Viral winter woe | Eugene Sheffer | 26 Apr 2024 |
| It goes viral in winter | New York Times | 08 Feb 2024 |
| Viral cause of a winter woe, informally | Premier Sunday | 10 Oct 2021 |
| Washing one's hands often might keep this at bay | ||
| It goes around in winter | ||
| Bad thing to catch |