2. Pneumonia a Possible Killer
The flu can lead to bacterial or viral pneumonia, neither of which is good. All that extra coughing and mucus production from the flu can set the stage for an infection like pneumonia to walk into the scene, says Time.com.
The infection related to pneumonia could “spread to their bloodstream and cause an overwhelming, multi-system infection,” even in some people who were otherwise healthy, adds the source. While this scenario is not common, the complications can end in death.