CCL4 and infection: Comparing to their baseline infections, paired analyses of the 11 individuals with reinfections during follow-up revealed that these reinfections had lower concentrations of IFNα (0.8 [IQR 0.8–0.8] vs. 12.2 [IQR 1.6–24.2], P = 0.004) and CCL4 (0.9 [IQR 0.9–12.2 vs. 17.5 [IQR 4.9–32.8], P = 0.022]; Table 2).