TY - JOUR
T1 - Maintenance of broad neutralizing antibodies and memory B cells 1 year post-infection is predicted by SARS-CoV-2-specific CD4+ T cell responses
AU - Balachandran, Harikrishnan
AU - Phetsouphanh, Chansavath
AU - Agapiou, David
AU - Adhikari, Anurag
AU - Rodrigo, Chaturaka
AU - Hammoud, Mohamed
AU - Shrestha, Lok Bahadur
AU - Keoshkerian, Elizabeth
AU - Gupta, Money
AU - Turville, Stuart
AU - Christ, Daniel
AU - King, Cecile
AU - Sasson, Sarah C.
AU - Bartlett, Adam
AU - Grubor-Bauk, Branka
AU - Rawlinson, William
AU - Aggarwal, Anupriya
AU - Stella, Alberto Ospina
AU - Klemm, Vera
AU - Mina, Michael M.
AU - Post, Jeffrey J.
AU - Hudson, Bernard
AU - Gilroy, Nicky
AU - Konecny, Pam
AU - Ahlenstiel, Golo
AU - Dwyer, Dominic E.
AU - Sorrell, Tania C.
AU - Kelleher, Anthony
AU - Tedla, Nicodemus
AU - Lloyd, Andrew R.
AU - Martinello, Marianne
AU - Bull, Rowena A.
AU - COSIN Study Group, null
PY - 2022
Y1 - 2022
N2 - Understanding the long-term maintenance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunity is critical for predicting protection against reinfection. In an age- and gender-matched cohort of 24 participants, the association of disease severity and early immune responses on the maintenance of humoral immunity 12 months post-infection is examined. All severely affected participants maintain a stable subset of SARS-CoV-2 receptor-binding domain (RBD)-specific memory B cells (MBCs) and good neutralizing antibody breadth against the majority of the variants of concern, including the Delta variant. Modeling these immune responses against vaccine efficacy data indicate a 45%-76% protection against symptomatic infection (variant dependent). Overall, these findings indicate durable humoral responses in most participants after infection, reasonable protection against reinfection, and implicate baseline antigen-specific CD4+ T cell responses as a predictor of maintenance of antibody neutralization breadth and RBD-specific MBC levels at 12 months post-infection.
AB - Understanding the long-term maintenance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunity is critical for predicting protection against reinfection. In an age- and gender-matched cohort of 24 participants, the association of disease severity and early immune responses on the maintenance of humoral immunity 12 months post-infection is examined. All severely affected participants maintain a stable subset of SARS-CoV-2 receptor-binding domain (RBD)-specific memory B cells (MBCs) and good neutralizing antibody breadth against the majority of the variants of concern, including the Delta variant. Modeling these immune responses against vaccine efficacy data indicate a 45%-76% protection against symptomatic infection (variant dependent). Overall, these findings indicate durable humoral responses in most participants after infection, reasonable protection against reinfection, and implicate baseline antigen-specific CD4+ T cell responses as a predictor of maintenance of antibody neutralization breadth and RBD-specific MBC levels at 12 months post-infection.
UR - https://hdl.handle.net/1959.7/uws:76371
U2 - 10.1016/j.celrep.2022.110345
DO - 10.1016/j.celrep.2022.110345
M3 - Article
SN - 2211-1247
VL - 38
JO - Cell Reports
JF - Cell Reports
IS - 6
M1 - 110345
ER -