Alfalfa Seed Decontamination in Salmonella Outbreak
Christopher J. Gill*†, William E. Keene* , Janet C. Mohle-Boetani‡, Jeff A. Farrar§, Patti L. Waller¶, Christine G. Hahn#, and Paul R. Cieslak*
Author affiliations: *Oregon Department of Human Services, Portland, Oregon, USA;; †Tufts University-New England Medical Center, Boston, Massachusetts, USA; ‡California Department of Health Services, Berkeley, California, USA; §California Department of Health Services, Sacramento, California, USA; ¶Washington State Department of Health, Shoreline, Washington, USA; #Idaho Department of Health and Welfare, Boise, Idaho, USA
Figure 2. Trace-back investigations of Oregon cases of Salmonella Mbandaka. *Case-patient 6 recalled no sprout exposure. Solid lines indicate trace-back routes leading to sprouter X. Dashed lines indicate trace-back routes leading to other sprouters.
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