Differential effects of the second SARS-CoV-2 mRNA vaccine dose on T cell immunity in naive and COVID-19 recovered individuals

Article Multidisciplinary Sciences

Correlates of protection against SARS-CoV-2 in rhesus macaques

Katherine McMahan et al.

Summary: Adoptive transfer of purified IgG from convalescent macaques protects naive macaques against SARS-CoV-2 infection, and cellular immune responses contribute to protection against rechallenge with SARS-CoV-2. The findings suggest that relatively low antibody titres are sufficient for protection against SARS-CoV-2 in macaques, while higher antibody titres are required for treatment of SARS-CoV-2 infection.

NATURE (2021)

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Article Immunology

Highly functional virus-specific cellular immune response in asymptomatic SARS-CoV-2 infection

Nina Le Bert et al.

Summary: The efficacy of virus-specific T cells in clearing pathogens involves a delicate balance between antiviral and inflammatory responses. Asymptomatic individuals clearing SARS-CoV-2 showed increased production of IFN-gamma and IL-2, along with a proportional secretion of IL-10 and proinflammatory cytokines, while symptomatic individuals displayed a disproportionate secretion of inflammatory cytokines triggered by SARS-CoV-2-specific T cell activation.

JOURNAL OF EXPERIMENTAL MEDICINE (2021)

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Letter Medicine, General & Internal

Effect of previous SARS-CoV-2 infection on humoral and T-cell responses to single-dose BNT162b2 vaccine

Maria Prendecki et al.

LANCET (2021)

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Editorial Material Medicine, General & Internal

Delayed Second Dose versus Standard Regimen for Covid-19 Vaccination

[Anonymous]

NEW ENGLAND JOURNAL OF MEDICINE (2021)

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Letter Medicine, General & Internal

Antibody Responses in Seropositive Persons after a Single Dose of SARS-CoV-2 mRNA Vaccine

Florian Krammer et al.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

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Article Biochemistry & Molecular Biology

Antibody responses to the BNT162b2 mRNA vaccine in individuals previously infected with SARS-CoV-2

Joseph E. Ebinger et al.

Summary: Virus-specific antibody levels after a single dose of the BNT162b2 vaccine in individuals previously infected with SARS-CoV-2 are similar to levels after two doses of the vaccine in infection-naive individuals. Post-vaccine symptoms were more prominent for those with prior infection after the first dose, but symptomology was similar between groups after the second dose.

NATURE MEDICINE (2021)

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Article Multidisciplinary Sciences

Prior SARS-CoV-2 infection rescues B and T cell responses to variants after first vaccine dose

Catherine J. Reynolds et al.

Summary: Vaccination with a single dose of BNT162b2 after prior infection with a heterologous variant substantially enhances neutralizing antibody responses against variants. In contrast, individuals without prior infection showed reduced immunity against variants after receiving a single vaccine dose.

SCIENCE (2021)

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Letter Medicine, General & Internal