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Levels of antibodies to seasonal coronaviruses and EBV in people who use drugs (PWUD) and controls. Note. The bar and whisker plot shows levels of antibodies to spike proteins (S1 domains) from indicated virus and the EBNA1 protein from EBV in PWUD (n = 99) and healthy controls (n = 648). The values correspond to anti-IgG R-PE median fluorescence intensity (MFI) measured for beads with indicated virus protein divided by the MFI measured for beads with neutravidin only
