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a. Violin plot of viral load in tissues quantified by RT-qPCR with median as centre. b. Violin plot of infectious SARS-CoV-2 titers in tissues, with median as centre. Blue: 104 TCID50 (low dose animals, n = 6); red: 105 TCID50 (high dose animals, n = 6); green: 105 TCID50 γ-irradiated (control animals, n = 2); dotted line = limit of detection.
