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Coronavirus Watch: More than 80 percent of Oregon COVID-19 cases still among the unvaccinated

The Oregon Health Authority released its breakthrough report on Thursday, showing that the vast majority of COVID-19 cases in the state are still among those who have not been vaccinated.

Posted: Sep 16, 2021 4:16 PM
Updated: Sep 16, 2021 6:02 PM

PORTLAND, Ore. — The Oregon Health Authority released its latest weekly breakthrough report on Thursday, showing that the vast majority of COVID-19 cases in the state are still among those who have not been vaccinated.

According to the new report, 81.3% of cases reported between September 1 and 15 occurred in people who were unvaccinated, representing 14,046 cases. There were 2,632 breakthrough cases, accounting for the remaining 18.7%.

The average age of the breakthrough cases during that period was 48. Ninety breakthrough cases involved residents of care facilities, senior living communities or other congregate care settings. There were 68 breakthrough cases in people between the ages of 12 and 17.

Breakthrough cases as a share of total cases have fluctuated somewhat over time. They were slightly lower in mid-August, accounting for 18.1% of cases. They were actually higher in July, at 20.5% of cases. They peaked briefly in early September, with 20.9% of cases.

Since vaccinations for COVID-19 began in Oregon, there have been 19,549 known breakthrough cases. The average age for all cases was also 48, and such cases have been identified in all 36 counties.

"Cases of COVID-19 are far more common in unvaccinated people," OHA said. "The report shows that the rate of COVID-19 in unvaccinated people is currently approximately five times higher than in vaccinated people."

To date, 4.7% of all vaccine breakthrough cases have been hospitalized and 0.9% have died. The average age of those who died was 81.

While the OHA does not publicly compile the share of vaccinated compared to unvaccinated hospitalizations and deaths, some hospital systems and public health agencies in Oregon have provided that information on a semi-regular basis — with data supporting the OHA's assertion that serious cases of COVID-19 in particular are far more common among the unvaccinated.

Asante reported Thursday that 90% of their 123 COVID-19 patients are unvaccinated, as are 90% of the 39 patients in intensive care. All 20 of their current patients on ventilators were unvaccinated, and 84% of deaths at Asante within the last 90 days were unvaccinated.

"Vaccination remains the most effective tool to reduce the spread of COVID-19. The number of vaccine breakthrough cases identified in Oregon remains very small when compared to the more than 2.7 million Oregonians who have completed their COVID-19 vaccination series," OHA continued.

Overall COVID-19 cases, new hospitalizations, and deaths declined last week for the first time in weeks — the first sign that the Delta variant surge is beginning to subside in Oregon. Active hospitalizations are declining only gradually. While the number of new hospitalizations saw a significant drop last week, there are many people who remain hospitalized from previous weeks.

As of Thursday, there were 1,027 people hospitalized for COVID-19 across the state, 40 fewer than on Wednesday. There were 286 COVID-19 patients in intensive care unit (ICU) beds, eight fewer than Wednesday.

OHA reported 2,242 new cases of COVID-19 on Thursday, in addition to 11 new deaths attributed to the virus. Most of the deaths came from Jackson County, which saw seven fatalities. The youngest was a 38-year-old man who died September 5 at his home. His death certificate listed COVID-19 disease or SARS-CoV-2 as a cause of death or a significant condition contributing to death, and he had underlying conditions.

Another death, a 44-year-old man who was previously reported as a Klamath County resident, was updated to reflect that he was actually from Jackson County.

Oregon Coronavirus Cases

Data is updated nightly.

Cases: 352026

Reported Deaths: 4185
CountyCasesDeaths
Multnomah55306692
Washington38321316
Marion36352445
Clackamas29350304
Lane27309299
Jackson22783304
Deschutes19886124
Umatilla14286144
Linn12617120
Douglas11918241
Josephine9292195
Yamhill8584111
Klamath7765111
Polk719680
Malheur552774
Benton537630
Coos492593
Columbia375743
Jefferson366351
Union316247
Lincoln313338
Wasco282640
Crook277646
Clatsop240729
Baker199228
Tillamook194929
Hood River190137
Morrow183023
Curry178723
Harney110225
Grant98012
Lake89711
Wallowa67312
Gilliam1494
Sherman1463
Wheeler1031
Unassigned00

California Coronavirus Cases

Data is updated nightly.

Cases: 4825708

Reported Deaths: 70829
CountyCasesDeaths
Los Angeles147768626443
Riverside3704095008
San Diego3649124169
San Bernardino3574215597
Orange3234075528
Sacramento1584372283
Fresno1451192063
Santa Clara1450041895
Kern1449141615
Alameda1202831381
San Joaquin1022501721
Ventura1008011165
Contra Costa99612995
Stanislaus856421319
Tulare79513958
San Francisco54220644
San Mateo53970622
Monterey50772583
Solano45898340
Santa Barbara45005522
Merced42047579
Sonoma40822402
Placer39118420
Imperial35794764
Kings32587315
San Luis Obispo29797331
Madera23680281
Butte23649265
Shasta23544341
Santa Cruz20928218
Yolo20240248
Marin17644243
El Dorado17083149
Sutter13847172
Napa12855100
Yuba1000882
Tehama9406107
Humboldt9171108
Nevada909490
Mendocino757686
Lassen749946
San Benito741372
Tuolumne680893
Lake6565104
Amador540364
Siskiyou445842
Glenn433632
Calaveras385180
Del Norte357141
Colusa302818
Inyo203540
Mono16565
Plumas16046
Mariposa130815
Trinity86711
Modoc6758
Unassigned1820
Sierra1810
Alpine1030
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