There's a good chance you've seen headlines about HMPV recently, with some touting "what you need to know" about the virus, aka human metapneumovirus. The answer is: not much.
It's a common, usually mild respiratory virus that circulates every year, blending into the throng of other seasonal respiratory illnesses that are often indistinguishable from one another. (The pack includes influenza virus, respiratory syncytial virus (RSV), adenovirus, parainfluenza virus, common human coronaviruses...