Last updated February 7, 2022 12:32 p.m. – Learn more about this update

COVID-19 Cases in Schools Dashboard

Bellevue School District believes that it is important for our community to have access to timely information on COVID-19 prevalence in our schools. Due to the recent surge in COVID-19 cases, we have had to adapt the way we report COVID-19 case counts so that we can continue to report up-to-date information.

Our Fall COVID-19 Dashboard (September 1 – December 17, 2021) reported data that was collected and vetted by our district contract tracers. It showed confirmed positive COVID-19 case counts of students and staff who were in district buildings during their infectious period. It also displayed how many cases were transmitted in schools, how many students and staff were quarantined, and how many COVID-19 outbreaks there were.

Our current COVID-19 Dashboard (January 4, 2022 – present) displays all reported COVID-19 cases of students and staff, whether or not they were in district buildings during their infectious period. Because this dashboard is not managed by contact tracers, we are unable to include information on transmissions, outbreaks and quarantines.

Current COVID-19 Dashboard – Frequently Asked Questions

How accurate is the information on the dashboard?

The dashboard shows all COVID-19 cases that are reported to the district. Like other COVID-19 dashboards available locally and nationally, reported COVID-19 numbers may be under-counted for a variety of reasons:

  • The data from the most recent 3-5 days is incomplete, as it takes time for test results to be returned and reported.
  • Not everyone who has been exposed to COVID-19 or has symptoms chooses to get a COVID-19 test. Some students and staff choose to follow quarantine or isolation procedures instead, without testing.
  • Not all positive cases are reported to the district.
  • Some people with COVID-19 never have symptoms, and so do not get tested.
  • Data entry errors are possible, such as positive cases being reported but not accurately logged through the reporting system.

A note on COVID-19 case counts from January 4-14, 2022: As we were switching from our old COVID-19 reporting system to our new system in the midst of the Omicron surge, it is possible that some positive COVID-19 cases were not captured. All positive cases identified through district testing during that time period were incorporated into the dashboard directly from the test provider. District staff made every effort to identify and log all other reported cases during that time period, but it is possible that a small number were missed or never reported. As of January 14, 2022, all new positive COVID-19 cases are logged directly in an internal district app that populates the current COVID-19 Dashboard.

How often is the dashboard updated?

The dashboard is generally updated once a day around 7 a.m. The latest refresh date is shown at the bottom left of the screen.

Why is there a “three-day lag” in the case counts for the last seven days?

We exclude the most recent three days in the “Cases over the Last Seven Days” because these data are incomplete. It takes time for test results to come back and for cases to be reported and entered in the system. Adding a three-day lag helps the count reflect more complete data.

Why is there a wave-like pattern to the graph showing COVID case counts?

People are less likely to get COVID-19 testing on weekends, so there is often a drop in case counts on Saturdays and Sundays, as well as on holidays.

Why do previously posted numbers sometimes change?

We post results as they come in, and it may take several days or more for test results to come back. The counts on the dashboard reflect the date a test was conducted; we update prior date counts whenever new positives are reported, based on the date the test sample was collected.

How can I see case counts over time for a particular school?

Click on the school name in either the column graph (in the middle of the dashboard) or the table (at the bottom of the dashboard). The “Reported COVID Cases Over Time” (top graph) will change to show just cases for that school.

To go back to the full view, click on the school name again.

How is the current COVID-19 dashboard different from the Fall COVID-19 dashboard? Why did you change?

Our Fall COVID-19 Dashboard (September 1 – December 17, 2021) reported data that was collected and vetted by our district contract tracers. It showed confirmed positive COVID-19 case counts of students and staff who were in district buildings during their infectious period. It also displayed how many cases were transmitted in schools, how many students and staff were quarantined, and how many COVID-19 outbreaks there were.

Our current COVID-19 Dashboard (January 4, 2022 – present) displays reported COVID-19 cases of students and staff, whether or not they were in district buildings during their infectious period. Because this dashboard is not managed by contact tracers, we are unable to include information on transmissions, outbreaks, and quarantines. We adapted the new dashboard approach so that we could report cases in a more timely way during the Omicron surge.

The Fall COVID -19 Dashboard and the overview information below will remain on this page for historical reference, but it will not be updated at this time.



Bellevue School District has updated our COVID-19 Dashboard to better meet the needs of our community. Through the use of PowerBI, the dashboard provides users the ability to look at BSD’s COVID-19 data in a variety of ways, including tables and graphs. Users can also easily change views between district totals and individual school totals. Directions on how to use PowerBI can be found in the How to Use the Dashboard section below.

The information on PowerBI will vary from what has been reported previously, so numbers in the updated dashboard may not match historical information. This is because of a change to the metrics that are being reported on. To provide additional clarity about these changes, below are answers to some frequently asked questions related to BSD’s dashboard and information on what is available through the PowerBI interface.

Scroll down to learn more about: How to use the dashboard and frequently asked questions.

How to Use the Dashboard


We have created videos to show users how the dashboard works and how to read the data.

The transcripts for each video may be reviewed here:

Frequently Asked Questions


What is displayed on the COVID dashboard?

There are three main pieces of information that are provided on the updated COVID dashboard: positive individuals, quarantines, and transmissions.

  • Positive individuals on the dashboard refers to individuals who fall into one of the following categories:
    • Received a lab-confirmed positive COVID-19 test result
    • Had COVID symptoms after a confirmed close contact exposure, but chose not to test
    • Had a positive COVID antigen test
      -AND-
    • Were in a Bellevue School District facility for a BSD sponsored event during their infectious period.
      • This data includes staff and students, as well as visitors, volunteers, student athletes, or others that were on a Bellevue School District campus during their infectious period.
      • When these individuals become known, trained Bellevue School District staff conduct a contact trace.
  • Quarantines on the dashboard refer to individuals who are unvaccinated close contacts of an infected person that were identified through a Bellevue School District contact trace. Per public health agencies, these individuals must quarantine for a minimum of 7-10 days, depending on whether the close contact participates in testing and the results of those tests. More information on quarantines can be found on our Responding to Cases and Suspected Cases
  • A COVID-19 transmission is reported on the dashboard when, in consultation with public health, all the following criteria have been met:
    • There are two or more lab-confirmed positive COVID-19 cases among individuals.
    • The cases have a symptom onset within a 14-day period of each other.
    • The cases are epidemiologically linked.
    • The cases do not share a household.
    • The cases are not identified as close contacts of each other in another setting.

What is not displayed on the COVID dashboard?

Each contact trace provides detailed information on the positive individual, close contacts and others. Because each contact trace is unique, there are varying reasons why some information may not appear in the COVID dashboard — even though you might be hearing about it in your community. The following information provides details on what is not included in the dashboard, along with some examples of when this might occur.

  • Positive individuals who received a lab-confirmed positive COVID-19 test result and were not in a Bellevue School District facility during their infectious period. For example, this might be an individual who was in quarantine and then tested positive after several days at home. This is because this individual was not in a Bellevue School District facility during their infectious period. Also, infected family members of students or staff do not generally appear in the dashboard unless that person was in a BSD facility during their infectious period.
  • Quarantines that occur for individuals as a result of an interaction outside of the Bellevue School District will not be reported on this dashboard. For example, students that are close contacts of a parent who tests positive and must quarantine will not be reported on the dashboard. In addition, close contacts that occur during a weekend gathering, party or event that is not school sponsored will also not appear on the BSD dashboard.

What can I tell from the date and location information on the dashboard?

The date column in the BSD dashboard refers to the last day during the infectious period that the COVID-positive person was at that BSD location.

Does every data point on the dashboard represent a unique COVID-19 case?

No, a COVID-positive person may appear several times on the dashboard. For example, some employees travel between locations as a part of their role. Or, a student may travel to another school for a class, activity or sport. If an employee or student visits multiple locations in the district on multiple days during their infectious period, each location will be listed.

Sample Scenario: A more specific example would be if a student attends Sammamish High School, takes a CTE course at Newport High School, and also travels to Interlake High School as part of a sports team. Later, this student tests positive and the contact trace finds that the student was at all three locations during their infectious period. This one case would be listed three times on the dashboard — once each for Sammamish, Newport and Interlake.

How does the data get added to the dashboard?

The information on COVID cases in Bellevue School District is updated upon the completion of the contact trace. Once all information is collected, the information is entered into a database by a trained contact tracer. This information is pulled once daily into the dashboard.

I got a phone call/letter from my school or work location about a positive case of COVID-19, why don’t I see it on the dashboard?

There can be a delay between when individuals receive a call or letter related to a positive case of COVID-19 and when it appears on the dashboard. Bellevue School District prioritizes informing individuals as quickly as possible during the contact trace. The trained contact tracers focus on communicating with the person who tested positive and all close contacts first, then the larger community. Therefore, it is likely that you may receive a phone call or letter about a case, and then see that information update in the dashboard a day or two later, following the completion of the contact trace and the daily update to the dashboard.

The Bellevue School District acknowledges that we learn, work, live and gather on the Indigenous Land of the Coast Salish peoples, specifically the Duwamish and Snoqualmie Tribes. We thank these caretakers of this land, who have lived and continue to live here, since time immemorial.