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Papers published by Prof. Dr. Henrik Ullum:

Original Research

Confounding and Negative Control Methods in Observational Study of SARS-CoV-2 Vaccine Effectiveness: A Nationwide, Population-Based Danish Health Registry Study

Obel N, Fox MP, Tetens MM, Pedersen L, Krause TG, Ullum H, Sørensen HT

Clinical Epidemiology 2024, 16:501-512

Published Date: 25 July 2024

Original Research

Seroprevalence of SARS-CoV-2 Antibodies in Denmark: Results of Two Nationwide Population-Based Surveys, February and May 2021

Krogsgaard LW, Espenhain L, Tribler S, Sværke Jørgensen C, Hansen CH, Møller FT, Glode Helmuth I, Sönksen UW, Vangsted AM, Ullum H, Ethelberg S

Infection and Drug Resistance 2023, 16:301-312

Published Date: 15 January 2023