The surprising virulence of this year’s flu
YOU HAVE TO HAND IT TO THE influenza virus. For something that’s invisible to the human eye, it certainly has a way of grabbing our attention and anxiety—not just once in a blue moon but every year, winter after winter.
This season the potentially deadly virus is in rare form. Public-health experts are predicting that this year’s flu will be severe for several reasons. Cases are starting up early, which is one indicator
