There was an aunt of mine who died of this flu. Her cause of death is listed as consumption..which was, as I understand from listening to my surviving aunts and uncles, was that she died by virtually drowning in her own phlem. The rest actually had that flu and made it through just fine and two aunts later became nurses. I remember them talking of the awful task it was helping their mother who was trying to hold their sister so that she could try and cough all that crap up. They also said that she was nearly pure blue in color from lack of air. There was no antibiodics in those days and both these aunts said that if they'd had any that it would have helped and she would have made it. Both these fine Ol Ladys took care of many a boy who came back from WW2 with infections and watched as the miracle of penicillin healed those boys. No way would they have believed that antibiodics would become a problem these days because of its overuse in medicine.
Isn't the influenza a virus? Antibiotics are no help against those.