“Bird flu?” Luo Ji said in alarm. “No. Bed flu. That’s what the media’s calling it. It started going around in a nearby city a week ago. It’s infectious, but symptoms are light. There’s no fever, just a runny nose, and some patients get a sore throat. There’s no need for medication, and it goes away on its own in three days or so after a little bed rest.”

— The Dark Forest by Cixin Liu (Remembrance of Earth's Past) (Page 231)