County COVID-19 Community Transmission

The Centers for Disease Control and Prevention (CDC) have developed evidence-based metrics that Oregon public health officials use to determine and track COVID-19 community transmission.

What is the data source? Data presented in this document come from Oregon’s case investigation database, the Oregon Pandemic Emergency Response Application (Opera). Opera is the tool by which Local Public Health Authorities (LPHAs) receive and process COVID-19 test results, including Electronic Laboratory Reports (ELRs) and Electronic Case Reports (ECRs), as well as manage information collected from case interviews and medical record reviews.

What is the time period? On Mondays, OHA pulls the number of COVID-19 cases, cases per 100,000 residents, and test positivity by county for the previous four full weeks from Opera. Weeks run from Sunday to Saturday following the CDC’s standard Morbidity and Mortality Weekly Report (MMWR) week. The case counts, case rates, and test positivity numbers from the previous full week are used to determine level of community spread. For case counts and case rates, cases are assigned to an MMWR week based on the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent test positivity, lab results are assigned to a MMWR week based on the date the test result was reported to public health.

How Does OHA Calculate Test Positivity? OHA receives test results from a variety of laboratories and health care providers. To calculate test positivity, OHA pulls all test results received from Electronic Lab Reports (ELRs) and via Oregon’s COVID Reporting Portal (OCRP) that were reported to public health in the previous full MMWR week by county. Next, the positive number of test results in each county are divided by the total number of test results in each county to calculate the county’s test positivity rate.

Are Adults in Custody (AICs) Included in County Case Counts? The data presented in this document includes all COVID-19 cases reported in a jurisdiction, so may include AICs.

Document accessibility: For individuals with disabilities or individuals who speak a language other than English, OHA can provide information in alternate formats such as translations, large print, or braille. Contact the Health Information Center at 1-971-673-2411, 711 TTY or [email protected]

Page 1 9/20/2021 Weekly Monitoring Periods From August 22 - September 18 This table is based on data pulled at 12:01 AM on 9/19/2021. For case counts and case rates, cases are assigned to a week based on their true case date, which is the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent positivity in testing, lab results are assigned to a week based on the date their test result was reported to Public Health. All data are provisional and subject to change. Week of data indicates the first day of the week for the data displayed. Weeks run Sunday to Saturday.

County Week of Date Case Count Cases per 100,000 Percent Positivity Oregon, August 22, 2021 16,209 379.8 12.4% Statewide August 29, 2021 13,774 322.7 11.1% September 5, 2021 14,010 328.3 12.0% September 12, 2021 12,014 281.5 10.4% Baker August 22, 2021 59 348.9 16.4% August 29, 2021 79 467.2 19.3% September 5, 2021 128 756.9 26.5% September 12, 2021 139 822.0 23.8% Benton August 22, 2021 172 181.7 7.1% August 29, 2021 152 160.6 6.8% September 5, 2021 180 190.1 7.1% September 12, 2021 174 183.8 6.9% Clackamas August 22, 2021 1,036 242.9 10.7% August 29, 2021 1,095 256.7 9.9% September 5, 2021 982 230.2 10.0% September 12, 2021 857 200.9 9.2% Clatsop August 22, 2021 159 403.0 20.6% August 29, 2021 82 207.8 13.6% September 5, 2021 64 162.2 15.6% September 12, 2021 129 327.0 12.8% Columbia August 22, 2021 179 336.0 16.8% August 29, 2021 154 289.0 15.3% September 5, 2021 185 347.2 16.6% September 12, 2021 139 260.9 14.9% Coos August 22, 2021 301 475.4 16.2% August 29, 2021 251 396.4 11.8% September 5, 2021 282 445.4 14.0% September 12, 2021 274 432.8 13.8% Crook August 22, 2021 102 435.2 17.1% August 29, 2021 119 507.7 14.9% September 5, 2021 124 529.0 20.1% September 12, 2021 111 473.5 14.6%

Page 2 9/20/2021 Weekly Monitoring Periods From August 22 - September 18 This table is based on data pulled at 12:01 AM on 9/19/2021. For case counts and case rates, cases are assigned to a week based on their true case date, which is the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent positivity in testing, lab results are assigned to a week based on the date their test result was reported to Public Health. All data are provisional and subject to change. Week of data indicates the first day of the week for the data displayed. Weeks run Sunday to Saturday.

County Week of Date Case Count Cases per 100,000 Percent Positivity Curry August 22, 2021 111 482.5 15.0% August 29, 2021 117 508.6 13.3% September 5, 2021 70 304.3 12.4% September 12, 2021 52 226.0 6.1% Deschutes August 22, 2021 1,047 531.4 13.6% August 29, 2021 959 486.8 12.9% September 5, 2021 960 487.3 14.9% September 12, 2021 891 452.2 12.5% Douglas August 22, 2021 1,145 1,017.5 26.9% August 29, 2021 958 851.3 22.5% September 5, 2021 848 753.6 23.1% September 12, 2021 446 396.3 13.6% Gilliam August 22, 2021 8 402.0 17.6% August 29, 2021 1 50.3 8.7% September 5, 2021 6 301.5 33.3% September 12, 2021 7 351.8 20.0% Grant August 22, 2021 47 642.5 12.5% August 29, 2021 42 574.2 11.0% September 5, 2021 45 615.2 11.0% September 12, 2021 30 410.1 5.2% Harney August 22, 2021 41 563.2 18.2% August 29, 2021 69 947.8 31.6% September 5, 2021 48 659.3 22.9% September 12, 2021 80 1,098.9 26.0% Hood River August 22, 2021 53 206.7 6.9% August 29, 2021 45 175.5 7.7% September 5, 2021 49 191.1 8.8% September 12, 2021 63 245.7 9.3% Jackson August 22, 2021 1,928 863.6 17.8% August 29, 2021 1,040 465.9 12.8% September 5, 2021 1,044 467.7 14.0% September 12, 2021 734 328.8 10.8%

Page 3 9/20/2021 Weekly Monitoring Periods From August 22 - September 18 This table is based on data pulled at 12:01 AM on 9/19/2021. For case counts and case rates, cases are assigned to a week based on their true case date, which is the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent positivity in testing, lab results are assigned to a week based on the date their test result was reported to Public Health. All data are provisional and subject to change. Week of data indicates the first day of the week for the data displayed. Weeks run Sunday to Saturday.

County Week of Date Case Count Cases per 100,000 Percent Positivity Jefferson August 22, 2021 121 502.0 18.7% August 29, 2021 106 439.7 12.0% September 5, 2021 83 344.3 12.2% September 12, 2021 97 402.4 15.0% Josephine August 22, 2021 775 895.3 22.0% August 29, 2021 679 784.4 18.1% September 5, 2021 501 578.8 15.4% September 12, 2021 352 406.7 14.7% Klamath August 22, 2021 279 409.8 18.3% August 29, 2021 295 433.3 17.5% September 5, 2021 196 287.9 17.5% September 12, 2021 308 452.4 15.9% Lake August 22, 2021 15 185.8 20.2% August 29, 2021 27 334.4 18.6% September 5, 2021 54 668.7 30.8% September 12, 2021 84 1,040.2 23.3% Lane August 22, 2021 1,471 385.7 10.1% August 29, 2021 1,180 309.4 8.8% September 5, 2021 1,259 330.1 10.9% September 12, 2021 1,049 275.1 8.5% Lincoln August 22, 2021 284 587.9 15.9% August 29, 2021 200 414.0 13.5% September 5, 2021 153 316.7 10.3% September 12, 2021 133 275.3 10.4% Linn August 22, 2021 710 557.7 15.1% August 29, 2021 748 587.5 14.3% September 5, 2021 799 627.6 16.2% September 12, 2021 665 522.3 14.0% Malheur August 22, 2021 154 479.7 18.6% August 29, 2021 220 685.3 19.5% September 5, 2021 210 654.1 16.6% September 12, 2021 289 900.2 16.6%

Page 4 9/20/2021 Weekly Monitoring Periods From August 22 - September 18 This table is based on data pulled at 12:01 AM on 9/19/2021. For case counts and case rates, cases are assigned to a week based on their true case date, which is the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent positivity in testing, lab results are assigned to a week based on the date their test result was reported to Public Health. All data are provisional and subject to change. Week of data indicates the first day of the week for the data displayed. Weeks run Sunday to Saturday.

County Week of Date Case Count Cases per 100,000 Percent Positivity Marion August 22, 2021 1,605 459.7 15.2% August 29, 2021 1,202 344.3 13.5% September 5, 2021 1,424 407.9 15.3% September 12, 2021 1,156 331.1 13.6% Morrow August 22, 2021 72 561.4 29.6% August 29, 2021 54 421.1 25.2% September 5, 2021 34 265.1 21.9% September 12, 2021 42 327.5 14.2% Multnomah August 22, 2021 1,471 177.3 7.1% August 29, 2021 1,337 161.2 6.8% September 5, 2021 1,593 192.0 7.9% September 12, 2021 1,232 148.5 6.6% Polk August 22, 2021 309 368.7 13.7% August 29, 2021 330 393.8 11.5% September 5, 2021 290 346.0 13.0% September 12, 2021 269 321.0 11.1% Sherman August 22, 2021 9 501.4 9.7% August 29, 2021 12 668.5 16.3% September 5, 2021 3 167.1 6.1% September 12, 2021 7 390.0 11.1% Tillamook August 22, 2021 205 772.7 23.9% August 29, 2021 154 580.5 15.5% September 5, 2021 150 565.4 16.0% September 12, 2021 89 335.5 11.2% Umatilla August 22, 2021 420 515.4 17.9% August 29, 2021 394 483.5 20.3% September 5, 2021 415 509.2 19.3% September 12, 2021 313 384.1 19.3% Union August 22, 2021 131 488.1 17.1% August 29, 2021 104 387.5 17.2% September 5, 2021 121 450.8 21.1% September 12, 2021 178 663.2 21.2%

Page 5 9/20/2021 Weekly Monitoring Periods From August 22 - September 18 This table is based on data pulled at 12:01 AM on 9/19/2021. For case counts and case rates, cases are assigned to a week based on their true case date, which is the date when public health first identified them as a confirmed or presumptive COVID-19 case. For percent positivity in testing, lab results are assigned to a week based on the date their test result was reported to Public Health. All data are provisional and subject to change. Week of data indicates the first day of the week for the data displayed. Weeks run Sunday to Saturday.

County Week of Date Case Count Cases per 100,000 Percent Positivity Wallowa August 22, 2021 61 852.0 25.4% August 29, 2021 63 879.9 25.2% September 5, 2021 23 321.2 18.5% September 12, 2021 23 321.2 17.2% Wasco August 22, 2021 163 597.2 9.6% August 29, 2021 114 417.7 8.1% September 5, 2021 96 351.7 8.4% September 12, 2021 114 417.7 11.5% Washington August 22, 2021 1,137 183.4 8.1% August 29, 2021 1,037 167.2 8.0% September 5, 2021 1,211 195.3 9.0% September 12, 2021 1,095 176.6 8.4% Wheeler August 22, 2021 4 277.8 7.4% August 29, 2021 0 0.0 13.6% September 5, 2021 2 138.9 13.3% September 12, 2021 3 208.3 22.2% Yamhill August 22, 2021 425 391.3 12.8% August 29, 2021 355 326.9 12.5% September 5, 2021 378 348.1 12.3% September 12, 2021 390 359.1 10.8%

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