Dear Yolo County folks... the numbers for CV/Covid in Yolo County as so small it is hard to make statistical inferences from them.
But not so for Santa Clara County, Northern Caifornia's worst zone for the corona virus. Here is the link to the Santa Clara County Public Health Department Corona Virus Dashboard:
Please note the large sample size from this pool of symptomatic patients who were referred by their provider for the CV test: 11607 tests. Results: 10.55% were positive and 89.45% were negative. The average turnaround time for the test was 2.88 days.
Please note: Santa Clara folks tell me that those positive results are "tight". Their testing standards are such that they avoided false positives as much as possible.
As you can imagine these results raise a lot of questions:
- Did you expect the percentage of "positives" to be higher?
- If 89% of these symptomatic patients were negative, what ailment do they actually have?
- What next? What course do we take with these results.
This is National Public Health Week folks.... let's appreciate what public health people do including their unusual skills in analyzing data. This is not a clinical skill, this is a PUBLIC HEALTH skill.
Enjoy the dashboard viewing!
John J. Troidl, MBA, PhD
(I have a PhD in public health and have also taught various courses in public health for a number of years).