This pool strategy is similar to what the Blood Banks use for screening donated sera fir HIV antibody and other infections. It is a very old pool successf.ul strategy.
Why not doing a 2 dimensional pooling, instead of 1D?
Asif, wouldn't that increase operational complexity?
2D pooling would greatly increase the next requirement when you get a positive.
How do you minimize possible stigmatization of individuals or pods who are "tapped" for secondary testing?
The 100% negative results are really amazing when incident rates are going up in the DC population. Is the self-reporting that comes before the testing make that work well? How do the COVID infection rates in the school population (is it zero?) compare to the 100% negative tests WIS is getting?
It should be noted that there were positive cases but they were diagnosed outside of school-based testing (which is good). It was helpful to have school based testing to reassure students who were returning to school of their negative status
As a parent (and public health researcher), I have been happy and impressed with this program. I have appreciated the contribution to public health for proof of concept and keeping students/staff/faculty safe.
Prevalence (not to be confused with positivity) is running about 4% nationwide. But if you screen out symptomatic people, obviously you get a much lower number.
Can you imagine the process for large public schools?
Given this is an out-of-lab PCR test (by requirement and for good reasons), does the test itself have an inherent/equivalent cycle-threshold (Ct)?
@Eric — every family completes a form every day for each child confirming that they are asymptomatic.
@Maryline — yes, albeit with a different internal staffing model.
Not luck! Good leadership - WIS parent
May I send a link of this recording to my daughter who works in a pediatric dental office and has kids in school? I believe it would be an eye opening experience for her.
Thank you for this discussion!
Good news, thanks!
Very proud of WIS for being part of this
Great presentation and wonderful program. Thank you!