Sentinel Surveillance System Implementation and Evaluation for SARS-CoV-2 Genomic Data, Washington, USA, 2020–2021
Hanna N. Oltean
, Krisandra J. Allen, Lauren Frisbie, Stephanie M. Lunn, Laura Marcela Torres, Lillian Manahan, Ian Painter, Denny Russell, Avi Singh, JohnAric MoonDance Peterson, Kristin Grant, Cara Peter, Rebecca Cao, Katelynn Garcia, Drew Mackellar, Lisa Jones, Holly Halstead, Hannah Gray, Geoff Melly, Deborah Nickerson, Lea Starita, Chris Frazar, Alexander L. Greninger, Pavitra Roychoudhury, Patrick C. Mathias, Michael H. Kalnoski, Chao-Nan Ting, Marisa Lykken, Tana Rice, Daniel Gonzalez-Robles, David Bina, Kelly Johnson, Carmen L. Wiley, Shaun C. Magnuson, Christopher M. Parsons, Eugene D. Chapman, C. Alexander Valencia, Ryan R. Fortna, Gregory Wolgamot, James P. Hughes, Janet G. Baseman, Trevor Bedford, and Scott Lindquist
Author affiliations: Washington State Department of Health, Shoreline, Washington, USA (H.N. Oltean, K.J. Allen, L. Frisbie, S.M. Lunn, L.M. Torres, L. Manahan, I. Painter, D. Russell, A. Singh, J.M. Peterson, K. Grant, C. Peter, R. Cao, K. Garcia, D. Mackellar, L. Jones, H. Halstead, H. Gray, G. Melly, S. Lindquist); University of Washington, Seattle, Washington (H.N. Oltean, D. Nickerson, L. Starita, C. Frazar, A.L. Greninger, P. Roychoudhury, P.C. Mathias, J.P. Hughes, J.G. Baseman); Northwest Genome Center, Seattle (D. Nickerson, L. Starita, C. Frazar); Atlas Genomics, Seattle (M.H. Kalnoski, C.-N. Ting); Confluence Health, Wenatchee, Washington (M. Lykken, T. Rice, D. Gonzalez-Robles); Incyte Diagnostics, Spokane Valley, Washington (D. Bina, K. Johnson, C.L. Wiley); Interpath Laboratory, Boise, Idaho, USA (S.C. Magnuson, C.M. Parsons, E.D. Chapman, A. Valencia); Northwest Laboratory, Bellingham, Washington (R.R. Fortna, G. Wolgamot); Fred Hutchinson Cancer Research Center, Seattle (T. Bedford)
Figure 1. Geographic extent of sequencing data available for COVID-19 cases in study of sentinel surveillance system implementation and evaluation for SARS-CoV-2 genomic data, Washington, USA, 2020–2021. A) Presentinel surveillance (specimens sequenced before March 1, 2021). B) Sentinel surveillance (specimens sequenced on or after March 1, 2021, through the sentinel surveillance program). Standardized ratios (observed/expected counts) of cases with sequenced specimens are indicated by county. No sequence data were available for 3 counties during the presentinel period.
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