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Evaluating the Test-Negative Design for COVID-19 Vaccine Effectiveness Using Randomized Trial Data: A Secondary Cross-Protocol Analysis of 5 Randomized Clinical Trials.
Andrews LIB, Halloran ME, Neuzil KM, van der Laan L, Huang Y, Andriesen J, Patel M, Fisher LH, Janes H, Rouphael N, Walsh SR, Theodore DA, Tieu HV, Sobieszczyk M, El Sahly HM, Baden LR, Falsey AR, Campbell TB, Kelley CF, Healy CM, Immergluck L, Luft B, Hirsch I, de Bruyn G, Truyers C, Priddy F, Sumner KM, Flannery B, Follmann D, Gilbert PB; COVID-19 Prevention Network (CoVPN). Andrews LIB, et al. JAMA Netw Open. 2025 May 1;8(5):e2512763. doi: 10.1001/jamanetworkopen.2025.12763. JAMA Netw Open. 2025. PMID: 40434773 Free PMC article.