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The post-COVID-19 population has a high prevalence of crossreactive antibodies to spikes from all Orthocoronavirinae genera

Singh, G.; Abbad, A.; Kleiner, G.; Srivastava, K.; Gleason, C.; Carreno Quiroz, J. M.; Simon, V.; Krammer, F.

2023-08-06 infectious diseases
10.1101/2023.08.01.23293522 medRxiv
Show abstract

The Orthocoronaviridae subfamily is large comprising four highly divergent genera. Four seasonal coronaviruses were circulating in humans prior to the coronavirus disease 2019 (COVID-19) pandemic. Infection with these viruses induced antibody responses that are relatively narrow with little cross-reactivity to spike proteins of other coronaviruses. Here, we report that infection with and vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induces broadly crossreactive binding antibodies to spikes from a wide range of coronaviruses including members of the sarbecovirus subgenus, betacoronaviruses including Middle Eastern respiratory syndrome coronavirus (MERS CoV), and extending to alpha-, gamma- and delta-coronavirus spikes. These data show that the coronavirus spike antibody landscape in humans has profoundly been changed and broadened as a result of the SARS-CoV-2 pandemic. While we do not understand the functionality of these crossreactive antibodies, they may lead to enhanced resistance of the population to infection with newly emerging coronaviruses with pandemic potential.

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.