Influenza's molecular theft caught in action—how the virus steals the cap of host RNA in order to replicate

The cold season is in full swing, throats are scratchy and noses are running. We feel ill and hope it is not the flu. The influenza virus continues to pose a threat to our health. It triggers seasonal epidemics and, from time to time, potentially serious global pandemics. Existing antiviral drugs are often less effective than hoped because the influenza virus mutates rapidly to escape their effect.