To Whom It May Concern:
I am searching for you day and night and soon I will find you. And when I do, you and I will go straight to your bed, and I will make you moan and groan and gasp for breath. One minute you'll be hot and sticky and sweating all over, the next minute you'll be shaking and shivering and your teeth will chatter. I will make you roll around under the sheets with every inch of you throbbing, and when I finally do leave you'll be so exhausted you won't have your energy back for days.
All the best, The Flu.
Now get your head out of the gutter, and get yourself a flu shot! 