Covid Diagnose trotz Impfung möglich?
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Re: Covid Diagnose trotz Impfung möglich?
30.07.2021, 17:10:18
Kann man beim Bluttest herausfinden, ob vor oder nach der Impfung eine echte
asymptomatische Covid Erkrankung stattgefunden hat?



Natural SARS-CoV-2 infection results in antibody development against viral proteins including the N and S proteins, including the RBD of the S protein.  Vaccine induced antibody development has implications for serologic testing.  Before vaccine introduction, a SARS-CoV-2 serologic test that detects any of the N, S or RBD antibodies could be considered to indicate previous exposure to SARS-CoV-2.  With the introduction of vaccine, vaccinated persons may test positive by serologic tests for the vaccine antigenic target (S and S subunits, including RBD) but not against other non-target proteins.  Thus, history of vaccination and/or prior SARS-CoV-2 infection must be considered when interpreting serologic test results.  Further, many persons infected with SARS-CoV-2 will be asymptomatic and never tested by viral detection tests, further complicating the interpretation of subsequent serologic testing.   Testing for antibodies that indicate natural infection could be a useful public health tool as vaccination programs are implemented, provided the serologic tests are adequately validated to specifically detect antibodies to specific proteins (or antigens). Although an antibody test may employ a specific antigen(s), antibodies developed in response to different proteins may cross-react (i.e., the antigen(s) may detect antibodies it is not intended to detect), and therefore, may not provide sufficient information on the presence of antigen specific antibodies.   For currently FDA authorized tests, it has not been established whether the antigen(s) employed by the test specifically detects only antibodies against that antigen and not others. Furthermore, none of the currently authorized tests have been specifically authorized to assess individuals who have received a vaccine.  However, the EUA indications for currently authorized tests do not preclude the use of these tests on individuals who have received a SARS-CoV-2 vaccine. Vaccination may cause false-positive results for tests that utilize the S antigen or subunits like RBD, but not for tests that use the N antigen.


https://www.cdc.gov/coronavirus/2019-ncov/lab/resources/antibody-tests-guidelines.html

Also, m.E. ja bei Tests auf N-antigen.

Habe aber nicht alles gelesen, k.A. ob diese Tests gut funktionieren.

Auf Deutsch: https://www.aerzteblatt.de/archiv/218570/SARS-CoV-2-Antikoerper-Klarheit-fuer-Impfung-und-Infekt

Es gibt offenbar einen N-Antikörpertest von Roche, der funktioniert.


Long Covid-Symptome sollen aber auch nach der Impfung durch Autoimmun- / Entzündungsreaktionen vorkommen (Studie dazu finde ich nicht mehr):

http://thedailycougar.com/2021/01/11/inflammatory-responses-to-vaccines-causing-public-concern/
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Erfolgsgeschichte EU in einem Bild


30.07.2021, 17:14 Uhr - Editiert von Lazy Jones, alte Version: hier
Antworten PM Übersicht Chronologisch Zum Vorgänger
 
Melden nicht möglich
 

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