Projets par an
The diagnostic of SARS-CoV-2 infection relies on reverse transcriptase polymerase chain reactions (RT-PCRs) performed on nasopharyngeal (NP) swabs. Nevertheless, false-negative results can be obtained with inadequate sampling procedures, making the use of other biological matrices worthy of investigation. This study aims to evaluate the kinetics of serum N antigens in severe and non-severe patients and compare the clinical performance of serum antigenic assays with NP RT-PCR. Ninety patients were included in the study and monitored for several days. Disease severity was determined according to the WHO clinical progression scale. Serum N antigen levels were measured with a chemiluminescent assay (CLIA) and the Single Molecular Array (Simoa) assay. Viremia thresholds for severity were determined and proposed. In severe patients, the peak antigen response was observed 7 days after the onset of symptoms, followed by a decline. No real peak response was observed in non-severe patients. Severity thresholds for the Simoa and the CLIA provided positive likelihood ratios of 30.0 and 10.9 for the timeframe between day 2 and day 14, respectively. Sensitive detection of N antigens in serum may thus provide a valuable new marker for COVID-19 diagnosis and evaluation of disease severity. When assessed during the first 2 weeks since the onset of symptoms, it may help in identifying patients at risk of developing severe COVID-19 to optimize better intensive care utilization.
Empreinte digitaleExaminer les sujets de recherche de « Serum SARS-CoV-2 Antigens for the Determination of COVID-19 Severity ». Ensemble, ils forment une empreinte digitale unique.
- 2 Actif
Douxfils, J., Dogne, J., Musuamba Tshinanu, F., MASEREEL, B., Wieërs, G., Haguet, H., RONVAUX, L., Donis, N., Morimont, L., Evrard, J., Siriez, R., Gillot, C., FAVRESSE, J., BOUVY, C., Djokoto, H., Didembourg, M., David, C., Melchionda, S., Maloteau, V., Boucher, A., Devel, P., Modaffari, E., Vandeputte, M., De Messemaeker, A., Decarpentrie, J., Vassart, J. & De Groote, A.
1/04/22 → …
Projet: Axe de recherche
Douxfils, J., Dogne, J., FAVRESSE, J., Tre-Hardy, M., MULLIER, F., Haguet, H., Hardy, M., Melchionda, S., BOUVY, C., Morimont, L., Gillot, C., Djokoto, H., Alpan, L., Devel, P., Modaffari, E. & Maloteau, V.
13/03/20 → …