Your committee begs leave to report as follows: Plague infection exists to-day among the ground squirrels—rural rodents—of California. No infection, in man or rodent, has been found in the centers of population in California since the fall and winter of 1908, and none in the state of Washington Since February, 1910, the last human case having occurred in Oakland, July 17, 1908. In the past two years more than 200,000 rats have been collected in San Francisco and Oakland and examined in the laboratory, without yielding a single case of infection. Your committee, therefore, is of the opinion that all traces of the disease have been eradicated from the cities about the bay. Notwithstanding the successful outcome of the anti-plague campaign the Public Health and Marine-Hospital Service intends to enforce prophylactic measures in these centers for a considerable period longer. These operations include building reforms, rat-proof construction, rat extermination ashore
Blue R, Heg EE, Snow WF. PREVENTIVE MEDICINE SECTION COMMITTEE REPORTS: REPORT OF COMMITTEE ON METHODS FOR THE CONTROL OF PLAGUE. JAMA. 1911;LVII(16):1271–1272. doi:10.1001/jama.1911.04260100097010
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