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Antibodies and positive nose swab
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Mommyg8




 
 
    
 

Post Wed, May 27 2020, 6:58 am
youngishbear wrote:
That's why social distancing and masks are still recomended, even for healthy people. The tests have too many accuracy issues, especially the false positives and false negatives on antibody tests, and we still don't have clarity on how contagious asymptomatic or mildly symptomatic people may be.

Social distancing is not the same as lockdown or quarantine. It just means avoid infecting others as you go about your day.


I don't know whether to laugh or cry at this post.
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Mommyg8




 
 
    
 

Post Wed, May 27 2020, 6:58 am
youngishbear wrote:
There are many tests on the market, and some are better than others. You would need to research the specific test you're interested in.

I recently read that the Mayo Clinic was rating other tests relative to their own, but turns out theirs may itself have as low as 85% accuracy.

The testing situation is very confusing.


Anybody know anything about Quest Diagnostics specifically?
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youngishbear




 
 
    
 

Post Wed, May 27 2020, 7:41 am
Mommyg8 wrote:
Anybody know anything about Quest Diagnostics specifically?


Quest has more than one test, according to this article:

https://gothamist.com/news/you.....y-nyc
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Mommyg8




 
 
    
 

Post Wed, May 27 2020, 8:00 am
youngishbear wrote:
Quest has more than one test, according to this article:

https://gothamist.com/news/you.....y-nyc


THis is what I found on google:

"The company started out using the Euroimmun AG Anti-SARS-CoV-2 ELISA IgG antibody test and then added the Abbott IgG antibody test. It is continuing to use both tests, although the Abbott test has become the primary platform. Euroimmun is a division of Perkin Elmer.

Both tests have received emergency use authorization from the FDA; only 10 serology tests have received this designation from the agency. The Euroimmun IgG test has a reported specificity of 96% and sensitivity of 65%, while the Abbott test claims a sensitivity of 100% and specificity of 99.5%. The FDA has just cracked down on serology tests requiring supporting validation documentation to be submitted within 10 business days of an initial notification."

Anybody here who can interpret this statement for me?
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nchr




 
 
    
 

Post Wed, May 27 2020, 10:00 am
Mommyg8 wrote:
Does anybody know how accurate these tests are? Both covid tests and antibody tests?


Honestly, not very accurate. We rushed to create them and there is a lot of cross activity with other coronaviruses that circulate in humans. This can result in false positives. On the other hand, because we tried to reduce false positives, we tried making the tests so specific that they may also produce false negatives. Think about how long we've known about viruses like the flu and measles - still our tests are not perfect in that regard. Labs can determine if an individual is capable of infecting others by analyzing the viral load and type of cell. If a child is testing positive, however, he should be isolated for the greater community. You can also try to consult with an ID doctor.
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