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Article
Cell Biology
Anthony T. Tan et al.
Summary: This study found that early induction of interferon-gamma (IFN-gamma) secreting SARS-CoV-2-specific T cells was present in patients with mild disease and accelerated viral clearance, while rapid induction and quantity of humoral responses were associated with an increase in disease severity. These findings highlight the importance of early functional SARS-CoV-2-specific T cells in both vaccine design and immune monitoring.
Article
Biochemistry & Molecular Biology
Wanwisa Dejnirattisai et al.
Summary: Ending the SARS-CoV-2 pandemic requires global vaccination. New virus strains with mutations impact antibody responses, but some variants are less resistant than others. A monoclonal antibody can neutralize different variants and partially restore neutralization potency for other public antibodies.
Article
Biochemistry & Molecular Biology
David S. Khoury et al.
Summary: The level of neutralizing antibodies is closely related to immune protection against COVID-19, playing a crucial role in protecting against detected infection and severe infection. Studies have shown that neutralizing titers will decline over time after vaccination, leading to decreased protection against SARS-CoV-2 infection.
Letter
Medicine, General & Internal
Laith J. Abu-Raddad et al.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Medicine, General & Internal
S. A. Madhi et al.
Summary: The ChAdOx1 nCoV-19 vaccine did not provide significant protection against mild-to-moderate Covid-19 caused by the B.1.351 variant, with an efficacy of 10.4%. The incidence of serious adverse events was balanced between the vaccine and placebo groups.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Multidisciplinary Sciences
Leonidas Stamatatos et al.
Summary: The study found that vaccination of both previously infected individuals and those who were not infected resulted in increased neutralizing antibody titers, with previously infected individuals showing a greater boost in neutralizing titers. Vaccination of naive individuals also elicited cross-neutralizing responses, but at lower titers.
Article
Multidisciplinary Sciences
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.
Article
Immunology
Daryl Geers et al.
Summary: This study suggests that some variants might partially escape humoral immunity induced by SARS-CoV-2 infection or BNT162b2 vaccination, but the S-specific CD4(+) T-cell activation is not affected by the mutations in the B.1.1.7 and B.1.351 variants.
SCIENCE IMMUNOLOGY
(2021)
Article
Immunology
John S. Tregoning et al.
Summary: The development and rollout of vaccines have brought hope for controlling the COVID-19 pandemic, with vaccines proving highly effective in preventing disease. However, challenges remain in ensuring equitable access to vaccines globally, as well as lessons to be learned for controlling pandemics in the future.
NATURE REVIEWS IMMUNOLOGY
(2021)