Magnitude of Potential Biases in COVID-19 Vaccine Effectiveness Studies due to Differential Healthcare seeking following Home Testing: Implications for Test Negative Design Studies.

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Citation: Qasmieh SA, Ferdinands JM, Chung JR, Wiegand RE, Flannery B, Rane MS, Nash D. Magnitude of Potential Biases in COVID-19 Vaccine Effectiveness Studies due to Differential Healthcare seeking following Home Testing: Implications for Test Negative Design Studies. Am J Epidemiol. 2026 Feb 2:kwag021. doi: 10.1093/aje/kwag021. Epub ahead of print. PMID: 41626716.