True, secondary infection is often a factor in flu mortality.
HOWEVER, the Spanish Flu was particularly virulent, often taking lives quickly, not from secondary infection but rather from a phenomenon known as “cytokine storm” in which the lungs were attacked and rapidly destroyed.
The young and healthy were as vulnerable as those with compromised health, and they died quickly, long before a secondary infection could establish.
Some strains of the H5N1 “bird” flu do the same thing.
Please don’t discount the danger, or efforts of researchers to protect us from another such pandemic.
I don't discount the efforts of researchers who may truly be working to lessen the effect of a possible pandemic. But this flu shot mania currently going on has nothing to do with altruism. It is a knee-jerk overreaction to a limited problem that has not taken into account long-term consequences. The statement "follow the money" has never failed to explain questionable actions.