CD19 and tuberculosis: At ARV2, the most frequent time of TB-IRIS presentation, the median iNKT cell frequency per million CD3+CD19– live lymphocytes in TB-IRIS was 992 (interquartile range [IQR], 166–5682) compared to 100 (IQR, 24.5–440) in non-IRIS patients (P = .025 in unadjusted analysis).