SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice

We assessed cross-reactivity to BA.1, BA.2, and BA.5 of neutralizing antibodies elicited by ancestral, Delta, and Omicron BA.1 SARS-CoV-2 infection in mice. Primary infection elicited homologous antibodies with poor cross-reactivity to Omicron strains. This pattern remained after BA.1 challenge, al...

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Main Authors: Mariana Baz, Nikita Deshpande, Charlie Mackenzie-Kludas, Francesca Mordant, Danielle Anderson, Kanta Subbarao
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2022-11-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/28/11/22-0718_article
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author Mariana Baz
Nikita Deshpande
Charlie Mackenzie-Kludas
Francesca Mordant
Danielle Anderson
Kanta Subbarao
author_facet Mariana Baz
Nikita Deshpande
Charlie Mackenzie-Kludas
Francesca Mordant
Danielle Anderson
Kanta Subbarao
author_sort Mariana Baz
collection DOAJ
description We assessed cross-reactivity to BA.1, BA.2, and BA.5 of neutralizing antibodies elicited by ancestral, Delta, and Omicron BA.1 SARS-CoV-2 infection in mice. Primary infection elicited homologous antibodies with poor cross-reactivity to Omicron strains. This pattern remained after BA.1 challenge, although ancestral- and Delta-infected mice were protected from BA.1 infection.
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spelling doaj.art-fa1e7f5914a84bffb6b090f925d9d72a2022-12-22T03:34:51ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592022-11-0128112352235510.3201/eid2811.220718SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in MiceMariana BazNikita DeshpandeCharlie Mackenzie-KludasFrancesca MordantDanielle AndersonKanta Subbarao We assessed cross-reactivity to BA.1, BA.2, and BA.5 of neutralizing antibodies elicited by ancestral, Delta, and Omicron BA.1 SARS-CoV-2 infection in mice. Primary infection elicited homologous antibodies with poor cross-reactivity to Omicron strains. This pattern remained after BA.1 challenge, although ancestral- and Delta-infected mice were protected from BA.1 infection. https://wwwnc.cdc.gov/eid/article/28/11/22-0718_articleCOVID-19coronavirus diseaseSARS-CoV-2severe acute respiratory syndrome coronavirus 2virusesrespiratory infections
spellingShingle Mariana Baz
Nikita Deshpande
Charlie Mackenzie-Kludas
Francesca Mordant
Danielle Anderson
Kanta Subbarao
SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
Emerging Infectious Diseases
COVID-19
coronavirus disease
SARS-CoV-2
severe acute respiratory syndrome coronavirus 2
viruses
respiratory infections
title SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
title_full SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
title_fullStr SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
title_full_unstemmed SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
title_short SARS-CoV-2 Omicron BA.1 Challenge after Ancestral or Delta Infection in Mice
title_sort sars cov 2 omicron ba 1 challenge after ancestral or delta infection in mice
topic COVID-19
coronavirus disease
SARS-CoV-2
severe acute respiratory syndrome coronavirus 2
viruses
respiratory infections
url https://wwwnc.cdc.gov/eid/article/28/11/22-0718_article
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