A Multistate Outbreak of Escherichia coli O157:H7 Infections Linked to Alfalfa Sprouts Grown from Contaminated Seeds

Thomas Breuer,* Denise H. Benkel,*† Roger L. Shapiro,* William N. Hall,‡ Mary M. Winnett,§ Mary Jean Linn,† Jakob Neimann,* Timothy J. Barrett,*Stephen Dietrich,‡ Frances P. Downes,‡ Denise M. Toney,¶ James L. Pearson,¶Henry Rolka,* Laurence Slutsker,* Patricia M. Griffin,* and the Investigation Team