Figure 1
From: Neuropathological lesions in intravenous BCG-stimulated K18-hACE2 mice challenged with SARS-CoV-2
Experimental design and timeline, depicting the immunization-to-sacrifice period for the three different groups of animals included in the study. Group 1 (animals challenged with SARS-CoV-2 only, named SARS-CoV-2, n = 22; 13 females and 9 males), Group 2 (animals intravenously administered BCG and challenged with SARS-CoV-2, named BCG-SARS-CoV-2, n = 21; 12 females and 9 males), Group 3 (negative control animals which were neither BCG-stimulated nor SARS-CoV-2 challenged, named control, n = 4; 2 females and 2 males).