Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England …

JL Bernal, N Andrews, C Gower, C Robertson, J Stowe… - bmj, 2021 - bmj.com
Objective To estimate the real world effectiveness of the Pfizer-BioNTech BNT162b2 and
Oxford-AstraZeneca ChAdOx1-S vaccines against confirmed covid-19 symptoms (including …

Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study

OT Ranzani, MDT Hitchings, M Dorion, TL D'Agostini… - bmj, 2021 - bmj.com
Objective To estimate the effectiveness of the inactivated whole virus vaccine, CoronaVac
(Sinovac Biotech), against symptomatic covid-19 in the elderly population of São Paulo …

Early effectiveness of COVID-19 vaccination with BNT162b2 mRNA vaccine and ChAdOx1 adenovirus vector vaccine on symptomatic disease, hospitalisations and …

JL Bernal, N Andrews, C Gower, J Stowe, C Robertson… - MedRxiv, 2021 - medrxiv.org
Objectives To estimate the real-world effectiveness of the Pfizer/BioNTech BNT162b2
vaccine and Astrazeneca ChAdOx1 vaccine against Confirmed COVID-19, hospitalisations …

Introducing new vaccines in low-and middle-income countries: challenges and approaches

A Guignard, N Praet, V Jusot, M Bakker… - Expert review of …, 2019 - Taylor & Francis
Introduction: The number of new vaccine introductions (NVIs) in low and middle-income
countries (LMICs) has markedly increased since 2010, raising challenges to often …

[HTML][HTML] Case-control vaccine effectiveness studies: Preparation, design, and enrollment of cases and controls

JR Verani, AH Baqui, CV Broome, T Cherian, C Cohen… - Vaccine, 2017 - Elsevier
Case-control studies are commonly used to evaluate effectiveness of licensed vaccines after
deployment in public health programs. Such studies can provide policy-relevant data on …

Measurement of vaccine direct effects under the test-negative design

JA Lewnard, C Tedijanto, BJ Cowling… - American journal of …, 2018 - academic.oup.com
Test-negative designs are commonplace in assessments of influenza vaccination
effectiveness, estimating this value from the exposure odds ratio of vaccination among …

[HTML][HTML] Pneumococcal conjugate vaccine against serotype 3 pneumococcal pneumonia in adults: a systematic review and pooled analysis

JM McLaughlin, Q Jiang, BD Gessner, DL Swerdlow… - Vaccine, 2019 - Elsevier
Background Serotype 3 pneumococcal disease has not substantially declined at the
population level after the routine introduction of 13-valent pneumococcal conjugate vaccine …

Double negative control inference in test-negative design studies of vaccine effectiveness

KQ Li, X Shi, W Miao… - Journal of the American …, 2023 - Taylor & Francis
The test-negative design (TND) has become a standard approach to evaluate vaccine
effectiveness against the risk of acquiring infectious diseases in real-world settings, such as …

Estimated reductions in hospitalizations and deaths from childhood diarrhea following implementation of rotavirus vaccination in Africa

MP Shah, JE Tate, JM Mwenda, AD Steele… - Expert review of …, 2017 - Taylor & Francis
Introduction: Rotavirus is the leading cause of hospitalizations and deaths from diarrhea. 33
African countries had introduced rotavirus vaccines by 2016. We estimate reductions in …

Use of recently vaccinated individuals to detect bias in test-negative case–control studies of COVID-19 vaccine effectiveness

MDT Hitchings, JA Lewnard, NE Dean, AI Ko… - …, 2022 - journals.lww.com
Postauthorization observational studies play a key role in understanding COVID-19 vaccine
effectiveness following the demonstration of efficacy in clinical trials. Although bias due to …