This link provides access to a books and documents in the HathiTrust database which were published about the epidemic around the time of the crisis
The Influenza Pandemic Of 1918-1919
by
Susan K. Kent
ISBN: 9780312677084
Publication Date: 2012
Documents from period newspapers, medical journals, government publications, letters, journal entries, memoirs, and novels are collected to present a full picture of the influenza pandemic of 1918-19.
NOTE: Several documents collected in the book are linked within this guide.
The Influenza Encyclopedia has become the Internet repository for historical documents on the American influenza pandemic of 1918-1919.
The Encyclopedia is Produced by the University of Michigan Center for the History of Medicine and Michigan Publishing, University of Michigan Library
Published by U.S. Public Health Service (1918)
[See "Influenza Encyclopedia" at left for a large collection of digitized documents from the Heath Service on this topic.]