Re:How did India go from 90k cases per day to just over 10k
by dudeithinkBLM on Friday February 26, 2021 @02:08PM
(#26278529)
The WHO's January 20th memo on PCR threshold which advised labs to verify cycles are at a level which doesn't generate a high false positive rate?
“[a]fter thorough investigation, WHO confirmed that the tests were not always being used appropriately and in accordance with the instructions provided by the manufacturer.”
“In particular, users in laboratories encountered problems with these tests when they did not apply the recommended positivity threshold — this can result in either false negative results (if the threshold applied is lower) or false positives (if threshold is higher),” the WHO said.
“[a]fter thorough investigation, WHO confirmed that the tests were not always being used appropriately and in accordance with the instructions provided by the manufacturer.”
“In particular, users in laboratories encountered problems with these tests when they did not apply the recommended positivity threshold — this can result in either false negative results (if the threshold applied is lower) or false positives (if threshold is higher),” the WHO said.