[quote TheSunIsStillShining]@boys3
That is certainly a possibility. The 668,000 odd LFTs on Friday 5th generated just over 700 positives.
This gives us around 1% positivity rate among kids.
I wonder what number it would be if the lft's accuracy rate would not be around 50%?
And also, at this point in time, IMHO, cluster analysis would be beneficial.
If the 700 + cases are spread across 700 schools, than it's a very diff picture than if there are clusters of 10-30 kids in one school, or if there are msoa/small regional clusters forming.
Again, all data is there, it should be pretty easy to do.
And, btw, I really don't understand why public health related data is so secret. I want to know how many + test does our school and the 5 others within walking distance have for example.[/quote]
If accuracy is 50%, then it puts positivity at 0.2%. You can look at MSOA level data on the cases map to see how many are in your local area; it doesn't matter who the cases are for risk assessment, because you assume not every case will be found. Those who have been found need to isolate, so they are suddenly least risk to you.
I think a rushed test of everyone is a good way of finding the most infectious before opening up schools. I wish they were getting PCR confirmation to verify the number of true false positives is vanishingly small (if it is), so then people can get back to messaging around false negatives.