The Relationship between Serological Testing, Demographics, Clinical Presentation and RT-PCR Testing for COVID-19.

Background: Serological tests provide an important tool to diagnose previous exposure to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Herein we describe the relationship between the demographics, clinical characteristics, and molecular investigations and the presence of coronavirus disease 2019 (COVID-19) antibodies.

Methods: Three hundred and four participants, living in Gauteng, South Africa, were screened for COVID-19 antibodies between September 12, and December 12, 2020.