Reduced effectiveness of repeat influenza vaccination: distinguishing among within-season waning, recent clinical infection, and subclinical infection.

Author(s): Bi Q, Dickerman BA, Nguyen HQ, Martin ET, Gaglani M, Wernli KJ, Balasubramani GK, Flannery B, Lipsitch M, Cobey S, US Flu Vaccine Effectiveness Network InvestigatorsJournal: J Infect DisPMID: 38687898 June 2024
Studies have reported that prior-season influenza vaccination is associated with higher risk of clinical influenza infection among vaccinees. This effect…

Comparison of the test-negative design and cohort design with explicit target trial emulation for evaluating Covid-19 vaccine effectiveness.

Author(s): Li G, Gerlovin H, Figueroa Muñiz MJ, Wise JK, Madenci AL, Robins JM, Aslan M, Cho K, Gaziano JM, Lipsitch M, Casas JP, Hernán MA, Dickerman BAJournal: EpidemiologyPMID: 38109485 March 2024
Observational studies are used for estimating vaccine effectiveness under real-world conditions. The practical performance of two common approaches - cohort…