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Sobieszczyk, M. et al. (n.d.). 1953. Immune responses, viral shedding, and COVID-19 symptom burden from breakthrough SARS-CoV-2 infection in a 2:1 randomized, double-blind, placebo-controlled Phase 3 study of AZD1222 (ChAdOx1 nCoV-19) vaccination. Open forum infectious diseases. p. . [Online].