Emerg Infect DisEmerging Infect. DisEIDEmerging Infectious Diseases1080-60401080-6059Centers for Disease Control and Prevention232604893563222C1-190110.3201/eid1901.C11901RetractionRetractionRetraction: Triple Reassortant Swine Influenza A (H3N2) Virus in WaterfowlRetraction: Triple Reassortant Swine Influenza A (H3N2) Virus in WaterfowlGoyalSagar M.Author affiliation: College of Veterinary Medicine– University of Minnesota, St. Paul, Minnesota, USAAddress for correspondence: Sagar M. Goyal, Professor of Virology, College of Veterinary Medicine─University of Minnesota, 1333 Gortner Ave., St. Paul, MN 55108, USA; email: goyal001@umn.edu12013191181181RamakrishnanMA , WangP , AbinM , YangM , GoyalSM , GramerMR , Triple reassortant swine influenza A (H3N2) virus in waterfowl. Emerg Infect Dis. 2010;16:72830. 10.3201/eid1604.091583Keywords: Influenza A virustriple reassortantH3N2waterfowlinterspecies transmissionviruses

To the Editor: We would like to retract the letter entitled “Triple Reassortant Swine Influenza A (H3N2) Virus in Waterfowl,” which was published the April 2010 issue of Emerging Infectious Diseases (1). The nucleoprotein gene sequences from the viruses reported in that letter are very closely related to those from the earliest detected triple reassortant swine influenza viruses [CY095676 A/sw/Texas/4199–2/1998(H3N2)]. Although these viruses could have acquired a swine-origin segment, the branch lengths are quite short for 9 years of evolution. Therefore, we have withdrawn these 4 isolates from GenBank and subsequently retract this letter.

Suggested citation for this article: Ramakrishnan MA, Wang P, Abin M, Yang M, Goyal SM, Gramer MR, et al. Retraction: triple reassortant swine influenza A (H3N2) virus in waterfowl. Emerg Infect Dis. 2013 Jan [date cited]. http://dx.doi.org/10.3201/eid1604.091583

ReferenceRamakrishnan MA, Wang P, Abin M, Yang M, Goyal SM, Gramer MR, Triple reassortant swine influenza A (H3N2) virus in waterfowl. Emerg Infect Dis. 2010;16:72830 10.3201/eid1604.09158320350405