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Washoe County School District COVID-19 vaccination clinic at Reed High School on Saturday, Jan. 30, 2021. (David Calvert/The Nevada Independent)

Welcome to the 39th installment of “Coronavirus Contextualized,” a recurring feature in which we explore some of the numbers swirling around in the time of coronavirus.

Through these stories, we hope to parse the numbers, including confirmed cases of COVID-19, people tested, number of hospitalizations and deaths, and provide some context to them. You can view the prior editions of “Coronavirus Contextualized” here on our coronavirus page.

These stories serve as a written roundup of the COVID-19 trends we kept our eyes on this week, with all graphs and charts living permanently on our COVID-19 data page, where they are updated multiple times a day with the latest numbers. 

We’re continuing to take suggestions for what kind of data, graphs and trends you would like to see analyzed in future versions of this story or included in a future update of our data page. Reach out to [email protected] with any feedback.

Below, we take a look at the latest COVID-19 trends as the number of new reported cases each day as Gov. Steve Sisolak on Thursday announced a new reopening plan that gradually loosens restrictions over the next two and a half months, at which point local jurisdictions will be responsible for putting in place their own COVID-19 health and safety measures.

Cases and test positivity

The good news continued for Nevadans this week: As of Thursday, an average of 677 cases were reported each day over the last seven days, down from 950 last week.

At the peak of the surge this fall, the seven-day average was 2,736, on Dec. 10. The low point before cases started to increase in mid-September was 267. That means that while cases are significantly down from the peak, they’re still more than double what they were before the surge.

Since the beginning of the pandemic in March, there have been 286,533 COVID-19 cases reported statewide. About a tenth of those cases, 36,039, have been diagnosed in the last month, and a little less than 2 percent, or 4,742 cases, have been reported in the last week.

One in 11 Nevadans has tested positive for the virus since the beginning of the pandemic. Nevada ranks 16th in the nation for COVID-19 cases per capita, the same as last week.

At the same time, Nevada’s test positivity rate — which looks at the percentage of tests or people coming back positive out of the total tested — remains high, though it continues to decrease day over day. As usual, we’ll look at two different methods of calculating test positivity below, using both individual people and a metric known as testing encounters.

Starting with the number of new reported people who tested positive for COVID-19 out of the total number of new reported people tested each day, the state’s seven-day average test positivity rate was about 22.4 percent as of Thursday, down from a recent high of 45.9 percent on Dec. 13 but still significantly higher than the recent low point before the surge this fall, 9.2 percent on Sept. 17. 

One of the drawbacks, however, of looking at test positivity using individual people is that some people are tested repeatedly. Someone who tested negative four times but tested positive on their fifth time would be counted as a new positive person but not a new person tested. (In other words, they would be counted in the numerator but not the denominator.) That’s why the test positivity rates calculated this way look so high.

Another way of looking at test positivity, as we have noted each week, is to examine test encounters, or the number of individual people tested each day. This method of looking at test positivity excludes duplicate samples collected the same day but accounts for people who are tested repeatedly on different days.

It is not possible to independently calculate the test positivity rate based on test encounters because the state only reports the number of positive cases, not the number of positive test encounters. However, the state does provide this number, calculated as an average over a 14-day period with a seven-day lag. As of Wednesday, that number was 14.3 percent, down from a high of 21.7 percent on Jan. 13. In September, before cases started to increase, the test positivity rate was 6.1 percent.

Whichever calculation you use to look at test positivity, the trends are generally the same. Test positivity had been increasing fairly steadily from September through mid-January and is now decreasing.

Since the beginning of the pandemic, about 1.4 million people — about one in 2.3 Nevadans have been tested for COVID-19, and there have been nearly 2.6 million individual testing encounters.

Vaccinations

Since vaccinations started in December, 379,077 doses of the COVID-19 vaccine have been administered in Nevada, according to the Centers for Disease Control and Prevention. That includes 299,502 first doses and 77,555 second doses.

(Gov. Steve Sisolak, during a press conference Thursday afternoon, provided slightly more up-to-date, though rounded, figures from the state’s data: 307,000 first doses administered and 82,000 second doses, totaling more than 390,000 doses.)

That means that just a little bit less than 10 percent of Nevadans have been either fully or partially vaccinated. In total, Nevada has been distributed 533,800 doses of the vaccine by the federal government.

According to the CDC, Nevada is receiving the third fewest number of doses per capita from the federal government of any state — up from second last week — at 17,330 per 100,000 residents. State officials continue to seek clarity from the federal government about why the state is receiving fewer doses on a per population basis than other states.

Nevada has administered the 10th fewest doses per capita of any state — though Nevada ranks 19th for most doses administered as a percentage of doses received, at 71.0 percent, down from 11th last week.

For more on these numbers, check out this explainer published by The Nevada Independent last week.

Among the counties, Mineral County has administered the most doses per capita, at 30,855 vaccines administered per 100,000 residents, followed by White Pine at 26,868 and Eureka at 19,271. Clark County ranks ninth at 11,142, while Washoe ranks fifth at 15,998.

For more on the vaccination process in the state, read our vaccine Q&A here.

Deaths

Nevada is still seeing a high number of new deaths reported each day, though the numbers are down from the peak in January.

As of Thursday, 30 deaths were being reported on average each day over the last seven days, down from a high of 44.9 on Jan. 14. Over the last seven days, 210 new COVID-19 deaths have been reported across the state, including:

  • 179 in Clark County
  • 15 in Washoe County
  • 5 in Nye County
  • 4 in Carson City
  • 3 in Elko County
  • 1 each in Lyon, Pershing, Storey and White Pine counties

In the last month, 1,138 deaths from COVID-19 have been reported statewide, a quarter of the 4,640 total COVID-19 deaths reported statewide since the beginning of the pandemic.

Pershing County has the number of deaths per capita in Nevada, with 28 deaths per 10,000 residents, followed by Carson City and Churchill County, each at 20, and Nye County at 19.

Nevada ranks 21st in the nation for deaths per capita, the same as last week.

Hospitalizations

COVID-19 hospitalizations in Nevada continue to decrease, though they continue to remain at high levels.

There were 879 people hospitalized with COVID-19 as of Wednesday, the last day for which data is available, down from 1,121 last week. The record, 2,025 hospitalizations, was set on Dec. 13. The low point in September was 417.

Nevada now has the sixth highest number of people hospitalized with COVID-19 per capita at 29.9 per 100,000, behind New York, Arizona, Georgia, Texas and New Jersey.

Nevada hospitals are currently staffing 7,044 beds, more than the 6,660 they are normally licensed to operate, to keep up with the demand. As of Wednesday, 75 percent of staffed hospital beds and 66 percent of ICU beds were occupied. Those numbers were 79 percent and 72 percent, respectively, in Southern Nevada and 70 percent and 53 percent in Northern Nevada.

County by county

Ten of the state’s 17 counties are considered at elevated risk for the spread of COVID-19 according to state criteria as of Thursday. Those counties not considered at risk are Storey, Churchill, Humboldt, Lander, Eureka, White Pine and Lincoln.

Counties are considered at risk for elevated spread of COVID-19 if they meet two of the following three metrics:

  • The average number of tests per day per 100,000, calculated over a 14-day period. If this number is less than 100, a county could be considered at risk.
  • The case rate per 100,000, calculated by taking the number of cases diagnosed and reported over a 30-day period. If this number is greater than 200, a county could be considered at risk.
  • The case rate per 100,000 and the test positivity rate, calculated over a 14-day period with a seven-day lag. If the case rate is greater than 50 and the test positivity rate is greater than 8.0 percent, a county could be considered at risk.

Mineral County continues to have the highest case rate in the state at 1,579 cases per 100,000 residents in the last 30 days. Clark County comes in second at 1,068 and Pershing County comes in third at 704.

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