According to his family Mr. Wiener was home until Wed evening when his temp rose to 103. His son said he was incoherent. He was only then taken to Flushing Hospital ER. By Thursday's 11PM news he was in very critical condition and by Friday at 7AM news he was near death. An experimental treatment involving removing 5% of his blood , treating it with ultra violet and returning it to the bloodstream was tried on Friday, along with, I believe, drug therapy. The family said he had improved somewhat on Saturday.
It does not seem that his condition was worsened by his hospitalization. He was critically ill when he showed up in the ER. His passing seems too rapid to be the result of secondary bacterial infection.