COVID‐19 vaccination status and testing rates in Finland—A potential cause for bias in observational vaccine effectiveness analysis

Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant

(2022) Nick Andrews et al.   NEW ENGLAND JOURNAL OF MEDICINE

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

(2021) Noa Dagan et al.   NEW ENGLAND JOURNAL OF MEDICINE

Theoretical framework for retrospective studies of the effectiveness of SARS-CoV-2 vaccines

(2021) Joseph A. Lewnard et al.   EPIDEMIOLOGY

Safety and Efficacy of Single-Dose Ad26.COV2.S Vaccine against Covid-19

(2021) Jerald Sadoff et al.   NEW ENGLAND JOURNAL OF MEDICINE

Protection of BNT162b2 Vaccine Booster against Covid-19 in Israel

(2021) Yinon M. Bar-On et al.   NEW ENGLAND JOURNAL OF MEDICINE

Efficacy and Safety of the mRNA-1273 SARS-CoV-2 Vaccine

(2020) Lindsey R. Baden et al.   NEW ENGLAND JOURNAL OF MEDICINE

Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine

(2020) Fernando P. Polack et al.   NEW ENGLAND JOURNAL OF MEDICINE

The Use of Test-negative Controls to Monitor Vaccine Effectiveness

(2019) Huiying Chua et al.   EPIDEMIOLOGY

The test-negative design for estimating influenza vaccine effectiveness

(2013) Michael L. Jackson et al.   VACCINE