1894 nationwide outbreak of plague in China, only the United States in the previous year through the national quarantine law ( National Quarantine Act ) . First medical officer Wyman ( Walter Wyman ) embattled president will be in San Francisco quarantine requirements placed on federal jurisdiction.

1899 years, the plague patients on a boat bound for San Francisco was found 1900 years 3 months really plague in San Francisco China Town diffusion; unexplained because the plague, it is the local whites blame Asians disease. And because of this news is bound to influence local business interests, consortia, California Governor Gage ( Henry Gage ) and the media have decided to work together to deny the presence of plague, and to make every effort to slander the then Federal Medical Officer Jinyuan (Joseph Kinyoun ) . Gage is known to be the governor of California's most notorious, when Wyman the Chinese City and statewide classified as infected and require the Chinese in California are required to carry out the health inspection certificate, the cover Kat quietly assist Chinese community to the Federal Medical Officer of unconstitutionality lawsuit filed last case was dismissed.

1902 Year Gage stepped down, 1903 was declared the presence of the San Francisco public health crisis, 1905 was the plague was only completely extinguished.