A new very promising Swedish covid-19 antibody test so far seems to give perfect test results:
"- In the tests we have done so far, the answer has been right in all. It is one hundred percent in both directions, both sensitivity and specificity. As a researcher, they say that one hundred percent does not exist, but so far the result is very good, says Sophia Hober.
She believes the positive result is because the test not only used a protein from the virus but used many variants at the same time.
- There must be signals from two different parts of the virus's proteins simultaneously for the response to be interpreted as positive. Others have chosen one, which gives a greater risk of getting a positive response, even though the person has not been ill. We have seen this in negative controls, that if we had only chosen one protein we would have had several cases where we thought the person had the virus, even though the blood we tested was from 2019, says Sophia Hober."
https://www.aftonbladet.se/nyh... (in Swedish)
