Reduced neutralizing activity of post-SARS-CoV-2 vaccination serum against variants B.1.617.2, B.1.351, B.1.1.7+E484K and a sub-variant of C.37

Abstract Highly efficacious vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have been developed.1 However, the emergence of viral variants that are more infectious than the earlier SARS-CoV-2 strains is concerning.2 Several of these viral variants have the potential to partially escape neutralizing antibody responses warranting continued immune-monitoring. Here, we tested a number of currently circulating viral variants of concern/interest, including B.1.526 (Iota), B.1.1.7+E484K (Alpha), B.1.351 (Beta), B.1.617.2 (Delta) and C.37 (Lambda) in neutralization assays using a panel of post-mRNA vaccination sera. The assays were performed with authentic SARS-CoV-2 clinical isolates in an assay that mimics physiological conditions. We found only small decreases in neutralization against B.1.526 and an intermediate phenotype for B.617.2. The reduction was stronger against a sub-variant of C.37, followed by B.1.351 and B.1.1.7+E484K. C.37 is currently circulating in parts of Latin America3 and was detected in Germany, the US and Israel. Of note, reduction in a binding assay that also included P.1, B.1.617.1 (Kappa) and A.23.1 was negligible. Taken together, these findings suggest that mRNA SARS-CoV-2 vaccines may remain effective against these viral variants of concern/interest and that spike binding antibody tests likely retain specificity in the face of evolving SARS-CoV-2 diversity..

Medienart:

Preprint

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

bioRxiv.org - (2024) vom: 23. Apr. Zur Gesamtaufnahme - year:2024

Sprache:

Englisch

Beteiligte Personen:

Carreño, Juan Manuel [VerfasserIn]
Alshammary, Hala [VerfasserIn]
Singh, Gagandeep [VerfasserIn]
Raskin, Ariel [VerfasserIn]
Amanat, Fatima [VerfasserIn]
Amoako, Angela [VerfasserIn]
Gonzalez-Reiche, Ana Silvia [VerfasserIn]
van de Guchte, Adriana [VerfasserIn]
Awawda, Mahmoud [VerfasserIn]
Banu, Radhika [VerfasserIn]
Beach, Katherine [VerfasserIn]
Bermúdez-González, Carolina [VerfasserIn]
Bielak, Dominika [VerfasserIn]
Cao, Liyong [VerfasserIn]
Chernet, Rachel [VerfasserIn]
Desai, Parnavi [VerfasserIn]
Fabre, Shelcie [VerfasserIn]
Ferreri, Emily. D. [VerfasserIn]
Floda, Daniel [VerfasserIn]
Gleason, Charles [VerfasserIn]
Kawabata, Hisaaki [VerfasserIn]
Khan, Zenab [VerfasserIn]
Kleiner, Giulio [VerfasserIn]
Jurczyszak, Denise [VerfasserIn]
Matthews, Julia [VerfasserIn]
Mendez, Wanni [VerfasserIn]
Mulder, Lubbertus CF [VerfasserIn]
Paniz-Mondolfi, Kayla Dr. Alberto E [VerfasserIn]
Salimbangon, Ashley [VerfasserIn]
Saksena, Miti [VerfasserIn]
Shin, A. [VerfasserIn]
Sominsky, Levy [VerfasserIn]
Tcheou, Johnston [VerfasserIn]
Srivastava, Komal [VerfasserIn]
Sordillo, Emilia Mia [VerfasserIn]
Sather, D. Noah [VerfasserIn]
van Bakel, Harm [VerfasserIn]
Krammer, Florian [VerfasserIn]
Simon, Viviana [VerfasserIn]

Links:

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Themen:

570
Biology

doi:

10.1101/2021.07.21.21260961

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI032245890