MMWR Morbidity and Mortality Weekly Report
hospitalized. Isolates from all 10 patients were identi- products poses a risk for foodborne illness (2), and
fied as indistinguishable by two-enzyme pulsed-field consumers of unpasteurized milk should be aware
gel electrophoresis (PFGE), with pattern combination of this risk.
UTJJPX01.098/UTJJPA26.009, and were sensitive to
routinely used antibiotics. Cultures of frozen, unpas-
teurized milk samples stored at dairy A from batches JM Hall, MPH, RT Rolfs, MD, RK Herlihy, MD, MPS
of milk sold during the outbreak period yielded S. Dimond, MPH, Bur of Epidemiology, Utah Dept of
Newport isolates indistinguishable by PFGE from Health; J Holbrook, MPH, Utah County Health Dept;
the outbreak strain. An inspection of dairy A on LH Smith, JM Wagner, Unified State Laboratories:
May 7, 2010, did not reveal any obvious sources of Public Health, Utah Dept of Health; RW Clark, MPH,
contamination. Utah Dept of Agriculture and Food. WA Lanier, DVM,
On May 12, 2010, on the basis of coliform test EIS Officer, CDC.