Seattleites held a public meeting and urged the Governor to petition the U.S. Public Health Service to take charge of the outbreak. The Public Health Service sent officers to Seattle. They inspected for plague 15,475 trapped rats, and policed sanitation, mainly in the 218 blocks along and behind the city's waterfront.
In November 1907, Seattle passed two ordinances to improve sanitary conditions and thus combat the plague. Ordinance #17391 was one of the first rat proofing ordinances enacted anywhere in the United States.