Why The Flu Is Worse For Some But Not Others

Once again I have not been perusing the Journal of Leukocyte Biology but it's a good thing I was reading KurzwelAI.net where I saw this: "Researchers from the Children's Hospital of Philadelphia have discovered important clues about why influenza is more severe in some people than it is in others. The influenza virus can paralyze the immune systems of some otherwise healthy individuals, leading to severe secondary bacterial infections, such as pneumonia."