Kerstin Puchinger,Noemi Castelletti,Raquel Rubio-Acero, Christof Geldmacher, Tabea M.Eser, Flora Deák, Ivana Paunovic, Abhishek Bakuli, Elmar Saathoff, Alexander von Meyer, Alisa Markgraf, Philine Falk, Jakob Reich, Friedrich Riess, Philipp Girl, Katharina Müller, Katja Radon, Jessica Michelle, Guggenbuehl Noller, Roman Wölfel, Michael Hoelscher, Inge Kroidl, Andreas Weiser, Laura Olbrich
Titel:
The interplay of viral loads, clinical presentation, and serological responses in SARS-CoV-2 – Results from a prospective cohort of outpatient COVID-19 cases
Abstract:
Risk factors for disease progression and severity of SARS-CoV-2 infections require an understanding of acute and long-term virological and immunological dynamics. Fifty-one RT-PCR positive COVID-19 outpatients were recruited between May and December 2020 in Munich, Germany, and followed up at multiple defined timepoints for up to one year. RT-PCR and viral culture were performed and seroresponses measured. Participants were classified applying the WHO clinical progression scale. Short symptom to test time (median 5.0 days; p = 0.0016) and high viral loads (VL; median maximum VL: 3∙108 copies/mL; p = 0.0015) were indicative for viral culture positivity. Participants with WHO grade 3 at baseline had significantly higher VLs compared to those with WHO 1 and 2 (p = 0.01). VLs dropped fast within 1 week of symptom onset. Maximum VLs were positively correlated with the magnitude of Ro-N-Ig seroresponse (p = 0.022). Our results describe the dynamics of VLs and antibodies to SARS-CoV-2 in mild to moderate cases that can support public health measures during the ongoing global pandemic.
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Risk factors for disease progression and severity of SARS-CoV-2 infections require an understanding of acute and long-term virological and immunological dynamics. Fifty-one RT-PCR positive COVID-19 outpatients were recruited between May and December 2020 in Munich, Germany, and followed up at multiple defined timepoints for up to one year. RT-PCR and viral culture were performed and seroresponses measured. Participants were classified applying the WHO clinical progression scale. Short symptom to...
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Stichworte:
SARS-CoV-2, COVID-19, RT-PCR,Viral culture,Immune response,Serological, testing,Public health