Author: Martin-Vicente, MarÃa; Almansa, Raquel; MartÃnez, Isidoro; Tedim, Ana P; Bustamante, Elena; Tamayo, Luis; Aldecoa, César; Gómez, José Manuel; Renedo, Gloria; Berezo, Jose Ãngel; Cedeño, Jamil Antonio; Mamolar, Nuria; GarcÃa Olivares, Pablo; Herrán-Monge, Rubén; Cicuendez, Ramón; EnrÃquez, Pedro; Ortega, Alicia; Jorge, Noelia; Doncel, Cristina; de la Fuente, Amanda; Bustamante-Munguira, Juan; Muñoz-Gómez, MarÃa José; González-Rivera, Milagros; Puertas, Carolina; Más, Vicente; Vázquez, Mónica; Pérez-GarcÃa, Felipe; Rico-Feijoo, Jesús; MartÃn, Silvia; Motos, Anna; Fernandez-Barat, Laia; Eiros, Jose MarÃa; Dominguez-Gil, Marta; Ferrer, Ricard; Barbé, Ferrán; Trapiello, Wysali; Kelvin, David J; Bermejo-Martin, Jesús F; Resino, Salvador; Torres, Antoni
Title: Low anti-SARS-CoV-2 S antibody levels predict increased mortality and dissemination of viral components in the blood of critical COVID-19 patients Cord-id: 2xn0jmq4 Document date: 2021_1_1
ID: 2xn0jmq4
Snippet: BACKGROUND: Anti-SARS-CoV-2 S antibodies prevent viral replication. Critically ill COVID-19 patients show viral material in plasma, associated with a dysregulated host response. If these antibodies influence survival and viral dissemination in ICU-COVID patients is unknown. PATIENTS/METHODS: We studied the impact of anti-SARS-CoV-2 S antibodies levels on survival, viral RNA-load in plasma, and N-antigenaemia in 92 COVID-19 patients over ICU admission. RESULTS: Frequency of N-antigenaemia was >2.
Document: BACKGROUND: Anti-SARS-CoV-2 S antibodies prevent viral replication. Critically ill COVID-19 patients show viral material in plasma, associated with a dysregulated host response. If these antibodies influence survival and viral dissemination in ICU-COVID patients is unknown. PATIENTS/METHODS: We studied the impact of anti-SARS-CoV-2 S antibodies levels on survival, viral RNA-load in plasma, and N-antigenaemia in 92 COVID-19 patients over ICU admission. RESULTS: Frequency of N-antigenaemia was >2.5-fold higher in absence of antibodies. Antibodies correlated inversely with viral RNA-load in plasma, representing a protective factor against mortality (Adjusted HR [CI 95%], p): (S IgM [AUC ≥ 60]: 0.44 [0.22; 0.88], 0.020); (S IgG [AUC ≥ 237]: 0.31 [0.16; 0.61], <0.001). Viral RNA-load in plasma and N-antigenaemia predicted increased mortality: (N1-viral load [≥ 2.156 copies/ml]: 2.25 [1.16; 4.36], 0.016); (N-antigenaemia: 2.45 [1.27; 4.69], 0.007). CONCLUSIONS: Low anti-SARS-CoV-2 S antibody levels predict mortality in critical COVID-19. Our findings support that these antibodies contribute to prevent systemic dissemination of SARS-CoV-2.
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