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COVID-19 Testing Dashboards

Data may be incomplete: In early August, it was discovered that there was a reporting issue with the State’s system that affected all counties. While the State believes this issue was resolved, we continue to validate our data.

This dashboard provides the total daily testing for COVID-19 in Santa Clara County. We monitor testing to ensure enough tests are completed to slow the spread of COVID-19. With adequate testing, the Public Health Department can help isolate those who test positive and use contact tracing to notify anyone who may have been exposed. The test turnaround time highlighted in the top banner is the current average number of days between a specimen being collected for testing and the result of that test at the lab. This is a good estimate for when someone should expect to wait before they know the results of their test. Also shown, is the average number of days between a specimen being collected for testing and result of that test being reported to the Public Health Department. When this turnaround time is shorter, the Public Health Department is able to isolate cases and identify and quarantine contacts quicker – a crucial part of successful case investigation and contact tracing.

Source: California Reportable Disease Information Exchange

Data Notes: A test represents at least one specimen tested per person per day. Some people will have multiple specimens collected and tested during the same visit but are only counted once per day. If a person is tested multiple times on different days then he or she will be counted for each day he or she was tested. The test positivity rate is the percent of positive tests out of total tests performed. The 7-day average positivity rate represents the most recent daily positivity rate averaged over the prior seven days. The test positivity rate highlighted in the top banner of the dashboard has a 7-day lag, because data for the last 7 days are preliminary and will likely change as additional results are received. The 7-day rolling average of specimen collection to result is the average number of days between a specimen being collected for testing and the result of that test at the lab. The 7-day rolling average of specimen collection to report is the average number of days between a specimen being collected for testing and the result of that test being reported to the Public Health Department.​

To download data related to the dashboard above, please visit: https://data.sccgov.org/browse?category=COVID-19​​

Healthcare System Testing Dashboard

Data may be incomplete: In early August, it was discovered that there was a reporting issue with the State’s system that affected all counties. While the State believes this issue was resolved, we continue to validate our data.​

Testing by healthcare system
This dashboard summarizes the number of COVID-19 tests performed by major healthcare systems in the county. Each ‘test’ or ‘testing incident’ represents at least one specimen tested per person, per day. This does not represent the number of individuals tested, as some people are tested multiple times over time because of the risk of frequent exposure.

Why this is important
Testing by healthcare systems, such as hospitals and clinics, is one of the key ways to ensure sufficient testing is available and accessible for the patients they serve. Healthcare providers in the county are required to test individuals with COVID-19 symptoms, contacts to a case and asymptomatic people who have a greater risk of being exposed to COVID-19. Hospitals are also testing people who receive select non-COVID related healthcare services at their facilities. Sufficient levels of testing in healthcare systems helps break chains of transmission and slow or prevent the spread of disease in the community.

Source: California Reportable Disease Information Exchange

Data notes: These data represent testing among Santa Clara County residents and so may not represent all testing performed by healthcare systems, given that some systems also serve people residing outside the county. Healthcare systems with outpatient services tend to serve more people and so may have higher testing levels than healthcare systems with only inpatient and emergency department services. Some healthcare systems in the county offer outpatient services only. The number of tests measures the total number of COVID-19 molecular tests completed during the seven-day time period. The daily average number of tests represents the seven-day average count of tests. The daily average rate of tests is the daily average number of tests completed over the past 7 days per 100,000 people served by the individual healthcare system. Total tests since January is the cumulative count of tests completed by the healthcare system since that time. The average rate of tests is not calculated for Verily and OptumServe sites. The State of California has defined an initial goal of at least 150 tests per day per 100,000 people. Bay Area County Health Officers set a goal of 200 tests per day per 100,000 people. Laboratories are required to report both positive and negative COVID-19 results via the California Reportable Disease Information Exchange (CalREDIE). The data for this dashboard are compiled using testing reports submitted to CalREDIE. The data are presented with a 7-day lag due to reporting delays. Please note that the Public Health Department is working with the healthcare systems in the county to improve reporting in CalREDIE and decrease under-reporting of tests completed.

To download data related to the dashboard above, please visit: https://data.sccgov.org/browse?category=COVID-19​​​

 

Click here to return to main COVID-19 Data and Reports page​​​​​​​​​​​​​

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Last updated: 9/7/2020 3:58 PM