Canadian study reveals rate of false positives from rapid antigen tests
TORONTO -- As provinces rely more heavily on rapid antigen tests as part of their strategy to curb the spread of COVID-19, there have been concerns over the possibility of false positive results. Canadian researchers have produced new data shedding light on the likelihood of such events.
Researchers from the University of Toronto's Rotman School of Management published their peer-reviewed findings in the journal JAMA earlier this month. They looked at the results of more than 900,000 rapid antigen tests conducted over 537 workplaces in Canada between January and October 2021.
During this period, Canada had two significant waves of COVID-19 driven by the Delta variant. A total of 1,322 positive results were logged with rapid tests. Of these cases, 1,103 also had data from a PCR test to compare against.
In total, 462 rapid test results, or 0.05 per cent of the 900,000 results, resulted in false positives. This represents 42% the positive test results in the study.
the pcr tests detect the RNAsof the virus while the rapid antige
the pcr tests detect the RNAs of the virus while the rapid antigen tests determine its proteins, I think. PCR tests are more accurate. However, since too many people are infected with the virus now, the medical providers can't be afford the huge amount of the PCR tests, the government suggested the antigen self tests at home to reduce the burdens of the test services in hospitals. The US government will send the self test kits to your home for free if you place an order starting from today. You can place your orders through the following link:
TORONTO -- As provinces rely more heavily on rapid antigen tests as part of their strategy to curb the spread of COVID-19, there have been concerns over the possibility of false positive results. Canadian researchers have produced new data shedding light on the likelihood of such events.
Researchers from the University of Toronto's Rotman School of Management published their peer-reviewed findings in the journal JAMA earlier this month. They looked at the results of more than 900,000 rapid antigen tests conducted over 537 workplaces in Canada between January and October 2021.
During this period, Canada had two significant waves of COVID-19 driven by the Delta variant. A total of 1,322 positive results were logged with rapid tests. Of these cases, 1,103 also had data from a PCR test to compare against.
In total, 462 rapid test results, or 0.05 per cent of the 900,000 results, resulted in false positives. This represents 42% the positive test results in the study.
https://www.ctvnews.ca/health/coronavirus/canadian-study-reveals-rate-of-false-positives-from-rapid-antigen-tests-1.5742050
false negativity?
it was said that the PCR tests had more false positives and antigen self test kits gave more false negatives, comparatively.
the pcr tests detect the RNAs of the virus while the rapid antigen tests determine its proteins, I think. PCR tests are more accurate. However, since too many people are infected with the virus now, the medical providers can't be afford the huge amount of the PCR tests, the government suggested the antigen self tests at home to reduce the burdens of the test services in hospitals. The US government will send the self test kits to your home for free if you place an order starting from today. You can place your orders through the following link:
http://www.covidtests.gov/
哪些人需要检测？1）生病的，2）密切接触者，3）旅行需要或住院screening
即没有exposure history也没有生病的这群人，哪需要检测？这是浪费。你看着吧，全民检测后，有的是后遗症。