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By the numbers: A look at Oregon’s recent COVID-19 spike

Over the last five days, the Oregon Health Authority has reported at least 100 new coronavirus cases three times.

PORTLAND, Ore. — Prior to June 7, there was only one day when Oregon reported at least 100 new COVID-19 cases. That was on April 4, less than two weeks after Gov. Kate Brown issued a statewide stay-home order. But over the last five days, the Oregon Health Authority has reported at least 100 new coronavirus cases three times, including 178 on Thursday, the most reported in a single day during the pandemic.

The OHA said the record number of new known cases can be attributed to the partial reopening of most of the state, more widespread testing, increased contact tracing, active monitoring of close contacts of cases and workplace outbreaks. Most recently, an outbreak linked to Pacific Seafood in Newport led to 127 people getting infected. State health officials have also repeatedly said that despite the recent spike in cases, Oregon’s overall rate of infection remains among the lowest in the United States.

Still, the uptick in cases has the governor and state health officials concerned. So much so that Gov. Brown on Thursday said all pending applications for counties to move into Phase 1 or Phase 2 of the state’s reopening plan have been put on hold for a week, to give time to have a better understanding of the recent spike.

“This one-week pause will give public health experts time to assess what factors are driving the spread of the virus and determine if we need to adjust our approach to reopening. I will work with doctors and public health experts to determine whether to lift this pause or extend it or make other adjustments,” Gov. Brown said in a statement Thursday night.

That means Multnomah County, the most densely populated in Oregon, will have to wait at least until June 19 before potentially entering Phase 1. The governor’s decision also means Hood River, Marion and Polk counties must wait at least another week before moving into Phase 2 of reopening.

RELATED: Multnomah County's Phase 1 reopening application put on hold for one week

The governor listed several areas of concern public health officials have at this point of the pandemic:

  • Cases of COVID-19 are increasing across Oregon affecting both urban and rural areas. Hospitalizations are also beginning to increase in Oregon.
  • Multnomah County has seen an increase in residents admitted to the hospital over the last two weeks. The percent of tests that are positive is going up, in the face of increased testing. Over 40% of the new cases in the last week have not been traced to a source.
  • Hood River County has seen an increase in new cases over the last week and is managing several simultaneous workplace outbreaks.
  • Marion County has seen an almost 40% increase in cases over the last week and new hospital admissions COVID-19 for county residents has increased over the last two weeks.
  • Polk County has seen an increase in cases over the last week and is managing a work site outbreak.

Interactive: Oregon COVID-19 Cases (Map updated Friday morning) 

The spike in known cases is not just limited to the past week. In the OHA’s most recent weekly report, which was released Wednesday, officials said there were 620 new COVID-19 cases during the week of June 1 to June 7, a 75% increase from the previous week of 353 cases, which was an 18% increase from the week prior. That 75% increase came as the total number of tests only increased by nearly 3%, from 18,215 to 18,721. The percentage of positive tests also jumped from 1.9% to 3%.

Read the weekly report

While the number of cases have surged to peak levels, the OHA noted hospitalizations and deaths were far below the peaks seen earlier in the pandemic. During the week of June 1 to June 7, 10 coronavirus-related deaths were reported.

Officials are also monitoring Oregon’s progress on the pandemic through six public health indicators, which are assessed at statewide and county levels. Here’s a breakdown of how the state and the counties whose reopening applications have been put on hold are faring. All data is from the OHA.

Click here to see how your county is faring in the public health indicators

1.) Percentage of emergency department visits for COVID-like illness is less than 1.5%, which is the normal average for flu-like illness when it’s not flu season.

  • State: 0.6% (Standard met). This indicator is only evaluated at a statewide level.

2.) Downward trend in percent of tests that are positive in the last seven days. The most recent data is from the week of June 1 to June 7.

  • State: Upward trend (Standard not met)
  • Multnomah: Upward trend (Not met)
  • Hood River: Upward trend (Not met)
  • Marion: Downward trend (Met)
  • Polk: Downward trend (Met)

3.) Percent increase in new cases in the last seven days should be no more than 5%. The most recent data is from the week of June 1 to June 7.

  • State: 73% (Standard not met)
  • Multnomah: 0% (Met)
  • Hood River: 600% (Not met)
  • Marion: 38% (Not met)
  • Polk: 33% (Not met)

4.) Percent of cases not traced to a known source in the last seven days should be below 30%. The most recent data is from the week of June 1 to June 7.

  • State: 22% (Standard met)
  • Multnomah: 42% (Not met)
  • Hood River: 14% (Met)
  • Marion: 22% (Met)
  • Polk: 50% (Indicator does not apply due to small number of cases)

5.) Trend in COVID-19 hospitalizations over the last 14 days should be downward. The most recent data is from May 25 to June 7.

  • State: Upward trend (Standard not met)
  • Multnomah: Upward trend (Not met)
  • Hood River: Indicator does not apply due to small number of cases.
  • Marion: Upward trend (Not met)
  • Polk: Indicator does not apply due to small number of cases.

6.) Percent of cases in the last seven days with follow up within 24 hours should be 95% or more. The most recent data is from the week of June 1 to June 7.

  • State: 96% (Standard met)
  • Multnomah: 96% (Met)
  • Hood River: 98% (Met)
  • Marion: 95% (Met)
  • Polk: 100% (Indicator does not apply due to small number of cases)

As Oregonians wait another week for further reopening, and the economic benefits that come with it, these are some of the data points health officials and the governor will likely be weighing over during that time. Gov. Brown plans to have a press conference at 9 a.m. Friday. It will be livestreamed on KGW.com and on KGW's YouTube, Facebook and Twitter pages.

RELATED: These 24 Oregon workplaces have active COVID-19 outbreaks

Watch: Multnomah County Phase 1 reopening put on hold