4.8 Letter

COVID-19 booster doses in pregnancy and global vaccine equity

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Article Medicine, General & Internal

Effectiveness of a third dose of the BNT162b2 mRNA COVID-19 vaccine for preventing severe outcomes in Israel: an observational study

Noam Barda et al.

Summary: A study using data from Israel's largest health-care organization showed that a third dose of the BNT162b2 mRNA vaccine is effective in preventing individuals from severe COVID-19-related outcomes, compared to receiving only two doses at least 5 months ago. The effectiveness of the third dose in preventing hospital admission was 93%, severe disease 92%, and COVID-19-related death 81%.

LANCET (2021)

Article Medicine, General & Internal

Waning Immune Humoral Response to BNT162b2 Covid-19 Vaccine over 6 Months

Einav G. Levin et al.

Summary: A study in Israel revealed that waning immunity after receiving two doses of the BNT162b2 vaccine led to an increase in the incidence of SARS-CoV-2 infection. Levels of spike-binding IgG and neutralizing antibodies decreased more significantly in men, individuals aged 65 or older, and immunosuppressed individuals in a longitudinal study involving nearly 4000 healthcare workers.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

Letter Medicine, General & Internal

SARS-CoV-2 vaccination in pregnancy: a unique opportunity for equity

Erkan Kalafat et al.

LANCET (2021)

Article Medicine, General & Internal

Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine through 6 Months

S. J. Thomas et al.

Summary: BNT162b2 vaccine remains highly effective and safe over the course of 6 months post-vaccination, with efficacy rates ranging from 86% to 100% across different demographics and risk factors for Covid-19. The vaccine also shows a high efficacy against severe disease, with particularly promising results observed in South Africa against the B.1.351 variant.

NEW ENGLAND JOURNAL OF MEDICINE (2021)