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Long-term humoral response following Delta and Omicron BA.1 co-infection.

Carla SaadeBruno PozzettoMelyssa Yaugel NovoaGuy OriolLaurence JossetBruno LinaStephane PaulAntonin BalSophie Touillet-Assant
Published in: NPJ vaccines (2023)
This study reports the 6-month humoral immune response in vaccinated patients concomitantly infected with Delta and Omicron BA.1 variants of SARS-CoV-2. Interestingly, the simultaneous exposure to the Delta and BA.1 S proteins does not confer an additional immune advantage compared to exposure to the BA.1 S protein alone.
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