Dr. John Campbell

A calibration of nucleic acid (PCR) by antibody (IgG) tests in Germany: the course of SARS-CoV-2 infections estimated Germany, authority-accredited laboratories (ALM) Conducted 90% of SARS-CoV-2 polymerase chain reaction (PCR) tests (March 2020 until January 2023) AND Conducted serological mass tests for IgG antibodies, observed IgG seroprevalence trajectory. THEREFORE Test-positive fractions of PCR and IgG tests Value of 0.14 found for the fitted scaling parameter Therefore, 14% of those who were tested PCR-positively actually became infected with SARS-CoV-2. ALSO A quarter of the German population carried IgG antibodies from natural infections in their blood at the turn of the year from 2020 to 2021. Second, independent analysis Germany-specific ratio of 1:10 for ratio between one positive PCR test and the corresponding number of persons actually infected with SARS-CoV-2 Align well to perfectly with the IgG-positive fraction (92%) reported by the Robert Koch …