Okay, not Influenza, "flu", as in something that causes flu like symptoms. Quite a lot of virus can do that, as well as bacteria, allergies, etc. https://en.wi

Okay, not Influenza, "flu", as in something that causes flu like symptoms. Quite a lot of virus can do that, as well as bacteria, allergies, etc. https://en.wikipedia.org/wiki/Influenza-like_illness https://en.wikipedia.org/wiki/Influenza-like_illness