Durable reprogramming of neutralising antibody responses following breakthrough Omicron infection
Abstract SARS-CoV-2 breakthrough infection of vaccinated individuals is increasingly common with the circulation of highly immune evasive and transmissible Omicron variants. Here, we report the dynamics and durability of recalled spike-specific humoral immunity following BA.1 or BA.2 breakthrough infection, with longitudinal sampling up to 8 months post-infection. Both BA.1 and BA.2 infection robustly boosted neutralisation activity against the infecting strain while expanding breadth against other Omicron strains. Cross-reactive memory B cells against both ancestral and Omicron spike were predominantly expanded by infection, with limited recruitment ofde novoOmicron-specific B cells or antibodies. Modelling of neutralisation titres predicts that protection from symptomatic reinfection against antigenically similar strains will be remarkably durable, but is undermined by novel emerging strains with further neutralisation escape.One sentence summary Omicron breakthrough infection elicits durable neutralising activity by recalling cross-reactive vaccine-elicited memory B cells..
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Preprint| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
bioRxiv.org - (2023) vom: 27. Feb. Zur Gesamtaufnahme - year:2023 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lee, Wen Shi [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| doi: |
10.1101/2023.02.19.23286159 |
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| PPN (Katalog-ID): |
XBI038756501 |
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| 245 | 1 | 0 | |a Durable reprogramming of neutralising antibody responses following breakthrough Omicron infection |
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| 520 | |a Abstract SARS-CoV-2 breakthrough infection of vaccinated individuals is increasingly common with the circulation of highly immune evasive and transmissible Omicron variants. Here, we report the dynamics and durability of recalled spike-specific humoral immunity following BA.1 or BA.2 breakthrough infection, with longitudinal sampling up to 8 months post-infection. Both BA.1 and BA.2 infection robustly boosted neutralisation activity against the infecting strain while expanding breadth against other Omicron strains. Cross-reactive memory B cells against both ancestral and Omicron spike were predominantly expanded by infection, with limited recruitment ofde novoOmicron-specific B cells or antibodies. Modelling of neutralisation titres predicts that protection from symptomatic reinfection against antigenically similar strains will be remarkably durable, but is undermined by novel emerging strains with further neutralisation escape.One sentence summary Omicron breakthrough infection elicits durable neutralising activity by recalling cross-reactive vaccine-elicited memory B cells. | ||
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| 700 | 1 | |a Amarasena, Thakshila |4 aut | |
| 700 | 1 | |a Kent, Helen E |4 aut | |
| 700 | 1 | |a Aggarwal, Anupriya |4 aut | |
| 700 | 1 | |a Turville, Stuart G |4 aut | |
| 700 | 1 | |a Taiaroa, George |4 aut | |
| 700 | 1 | |a Kinsella, Paul |4 aut | |
| 700 | 1 | |a Liew, Kwee Chin |4 aut | |
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| 700 | 1 | |a Wheatley, Adam K |4 aut | |
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