Bellevue, WA here; I had a very bad case of the flu in early Feb (worst I can remember) and it took 3+ weeks to fully recover. Many cow-orkers were also affected (some meetings with 30+ people were down to a handful of people . . . not a bad thing under the circumstances).

Our "patient zero" was a dev who came into work for a day with a cough.

If you're sick, please stay home.