When the disease surfaced again that fall, it was far more severe. Scientists, doctors, and health officials could not identify this disease which was striking so fast and so viciously, eluding treatment and defying control. Some victims died within hours of their first symptoms.
— The Influenza Epidemic of 1918 (National Archives)
Judging by the following sign on an abandoned downtown San Diego mortgage firm’s offices, the pricking of the San Diego real estate bubble was like arrival of the pandemic flu of 1918: It happened so fast that one firm was still hiring as it went bust.