I seem to remember that there was a
NEW MIRACLE DRUG that would help reduce fever. ( Bayer? Aspirin )
The Military Hospitals couldn't figure why
large numbers of soldiers were turning blue and dying.
The virus thrived in a non-fever enviroment, and became lethal because of it.
https://pubmed.ncbi.nlm.nih.gov/19788357/
..."a significant proportion of the deaths may be attributable to aspirin."