Barely Significant

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It is unlikely that this event signified re-infection or re-exposure for the following reasons: (1) serial nasopharyngeal swab testing for SARS-CoV-2 RNA remained negative until month 12; (2) the patient had no clinical symptoms suggestive of re-infection; (3) His IgG titer continually decreased until M12; (4) the changes observed in levels of DCs, mDCs and B-cells showed a trend consistent with IgM levels.
A direct comparison of the CD8 + T-cell response against E1 from Ii-E1E2E6E7 and E1E2E6E7 (Mann-Whitney rank-sum) revealed a p-value of 0.06, which is not strictly significant, but strongly indicates a tendency of Ii improving the magnitude of CD8 + T-cells against E1.
While tumors from Slit2-treated mice only showed a trend in decrease in the M2 macrophage population (data not shown), M1 macrophages identified as CD45+F4/80+CD38+ cells were significantly more abundant in mice with Slit2-treated tumors compared to PBS-treated tumors (71 ± 20 vs. 188 ± 81.4 cells in 20,000 events, n = 4, *p < 0.05) ( Figure 1B ).