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

Autor: Mariana Baz, Nikita Deshpande, Charlie Mackenzie-Kludas, Francesca Mordant, Danielle Anderson, Kanta Subbarao
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Emerging Infectious Diseases, Vol 28, Iss 11, Pp 2352-2355 (2022)
Druh dokumentu: article
ISSN: 1080-6040
1080-6059
DOI: 10.3201/eid2811.220718
Popis: 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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