Interventions to Disrupt Coronavirus Disease Transmission at a University, Wisconsin, USA, August–October 2020
Dustin W. Currie1
, Gage K. Moreno1
, Miranda J. Delahoy, Ian W. Pray, Amanda Jovaag, Katarina M. Braun, Devlin Cole, Todd Shechter, Geroncio C. Fajardo, Carol Griggs, Brian S. Yandell, Steve Goldstein, Dena Bushman, Hannah E. Segaloff, G. Patrick Kelly, Collin Pitts, Christine Lee, Katarina M. Grande, Amanda Kita-Yarbro, Brittany Grogan, Sara Mader, Jake Baggott, Allen C. Bateman, Ryan P. Westergaard, Jacqueline E. Tate, Thomas C. Friedrich, Hannah L. Kirking, David H. O’Connor, and Marie E. Killerby
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (D.W. Currie, M.J. Delahoy, I.W. Pray, G.C. Fajardo, D. Bushman, H.E. Segaloff, C. Lee, J.E. Tate, H.L. Kirking, M.E. Killerby); University of Wisconsin–Madison, Madison, Wisconsin, USA (G.K. Moreno, A. Jovaag, K.M. Braun, D. Cole, T. Shechter, C. Griggs, B.S. Yandell, S. Goldstein, P. Kelly, C. Pitts, J. Baggott, R.P. Westergaard, T.C. Friedrich, D.H. O’Connor); Wisconsin Department of Health Services, Madison (I.W. Pray, D. Cole, H.E. Segaloff, R.P. Westergaard); Public Health Madison and Dane County, Madison (K.M. Grande, A. Kita-Yarbro, B. Grogan, S. Mader); Wisconsin State Laboratory of Hygiene, Madison (A.C. Bateman)
Figure 3. Phylogenetic tree of the coronavirus disease outbreak in dormitories A and B, University of Wisconsin–Madison, Dane County, Wisconsin, USA, January 2020–January 2021. A) Phylogenetic tree of all cases sequenced in Dane County, Wisconsin (light gray tips) during January 2020–January 2021 and cases sequenced in each dormitory. Pink shading indicates cluster associated with dormitories A and B. B) Expanded view of phylogenetic tree of the large cluster of cases associated with dormitories A and B during the September 2020 outbreak. C) Mutations relative to the initially identified severe acute respiratory syndrome coronavirus 2 genome in Wuhan, China (GenBank accession no. MN908947.3), during the outbreak in dormitories A and B.
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