It is possible for both dying "from" and dying "with" to be true. (although the medical meaning of each is imprecise IHMO) I have read that many (most?) of th

It is possible for both dying "from" and dying "with" to be true. (although the medical meaning of each is imprecise IHMO) I have read that many (most?) of the victims of the 1918 flu pandemic did not die from the virus, rather the virus weakened them to the point where pneumonia bacteria took hold in their lungs. With no recourse to antibiotics many did not survive the bacterial infection. This sounds like how my great-grandfather died. It was reported that he contracted the flu and was sick for two weeks but began to recover, then relapsed and died. Sounds like a bacterial secondary infection after a viral infection.