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Open AccessJournal ArticleDOI

BNT162b2 mRNA Covid-19 Vaccine in a Nationwide Mass Vaccination Setting.

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TLDR
This study in a nationwide mass vaccination setting suggests that the BNT162b2 mRNA vaccine is effective for a wide range of Covid-19–related outcomes, a finding consistent with that of the randomized trial.
Abstract
Background As mass vaccination campaigns against coronavirus disease 2019 (Covid-19) commence worldwide, vaccine effectiveness needs to be assessed for a range of outcomes across diverse p...

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COVID-19 vaccinations are associated with reduced fatality rates: Evidence from cross-county quasi-experiments.

TL;DR: In this article, the authors evaluated the association of COVID-19 vaccine coverage with case fatality ratio (CFR) on a global scale and found that a 10% increase in vaccine coverage was associated with a 7.6% reduction in the CFR (95% confidence interval (CI = -12.6 to -2.7%, P = 0.002).
Journal ArticleDOI

The way of SARS-CoV-2 vaccine development: success and challenges.

TL;DR: In this paper, the influence of mutational hotspots on the vaccine efficacy and characteristics of variants of interest and concern was discussed. And the authors provided an overview of the duration of immune responses after natural infection or vaccination and shed light on the factors that may affect the immunity induced by the vaccines, such as special disease conditions, sex, and pre-existing immunity, with the aim of aiding in combating COVID-19 and distributing SARS-CoV-2 vaccines under the prevalence of diverse SARS CoV2 variants.
References
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Book ChapterDOI

Nonparametric Estimation from Incomplete Observations

TL;DR: In this article, the product-limit (PL) estimator was proposed to estimate the proportion of items in the population whose lifetimes would exceed t (in the absence of such losses), without making any assumption about the form of the function P(t).
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Validation of a combined comorbidity index.

TL;DR: The estimated relative risk of death from an increase of one in the comorbidity score proved approximately equal to that from an additional decade of age.
Journal ArticleDOI

Using Big Data to Emulate a Target Trial When a Randomized Trial Is Not Available

TL;DR: This work outlines a framework for comparative effectiveness research using big data that makes the target trial explicit and channels counterfactual theory for comparing the effects of sustained treatment strategies, organizes analytic approaches, provides a structured process for the criticism of observational studies, and helps avoid common methodologic pitfalls.
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Trending Questions (1)
How much RNA is in Covid vaccine?

This study in a nationwide mass vaccination setting suggests that the BNT162b2 mRNA vaccine is effective for a wide range of Covid-19–related outcomes, a finding consistent with that of the randomized trial.