Fig. 2. Biodistribution and persistence of SARS-CoV-2 mRNA vaccines.
Depicted is a heat map for vaccine detection in the tissues with the patients arranged by the interval in days from last vaccination to death. The scale at the right indicates the copies of vaccine mRNA per ng of RNA. Vaccine mRNA was detected in bilateral axillary lymph nodes (ALN), cardiac left ventricle (LV), and cardiac right ventricle (RV), within 30 days of vaccination in a subset of patients, but not in mediastinal lymph nodes (MLN), liver or spleen.