The flu is gone. This is not an illusion. It's not down to the wilful or mistaken misdiagnosis of Corona or anything like that. Most countries have long-standing influenza surveillance programs, entire offices of people whose job it is to find and track the flu. These programs are still running, and influenza tests are still widely administered across the world. Despite all of this searching, nobody can find anything but a few outliers. As a seasonal phenomenon in the northern and southern hemispheres, influenza has disappeared.