Pre-existing anti-SARS-CoV-2 immunity decreases viral spread but increase SARS-CoV-2 Omicron competitiveness in hamsters

In a new study, researchers assessed the impact of pre-existing immunity against SARS-CoV-2 acquired by previous infections (PI) or COVID-19 vaccination on the transmission of SARS-CoV-2 variants of concern such as Delta and Omicron.

Intranasal administration of convalescent plasma protects against

COVID-19 Pandemic: Insights into Interactions between SARS-CoV-2

STAT2 signaling restricts viral dissemination but drives severe

Innate and adaptive immune responses to SARS-CoV-2 infection in

Frontiers SARS-CoV-2 Variants, Vaccines, and Host Immunity

Infection- or AZD1222 vaccine-mediated immunity reduces SARS-CoV-2

Long-term, infection-acquired immunity against the SARS-CoV-2

Frontiers SARS-CoV-2 variants: Impact on biological and clinical

Infection- or vaccine mediated immunity reduces SARS-CoV-2

Full article: SARS-CoV-2 hijacks neutralizing dimeric IgA for

Frontiers Serial infection with SARS-CoV-2 Omicron BA.1 and BA.2