Three little letters

F. L. U. There may be no worse three-letter word in the English language; if there is, I admit to bias based on current circumstances.
Fortunately, this hasn’t been the worst case I’ve had. The fever, body aches, and coughing are there, but I’ve been able to work from home for some of the day. This is only day two, though, and I’ve heard that this strain gets worse as it goes along, so there’s that.