EPO and infection: For instance, we identified two immunoglobulins (Igkv12, Ighg) with significantly elevated abundance during infection at 11 dpi, 15 dpi, and endpoint (Fig. 4A) and a single eosinophil peroxidase (Epo) with significantly increased abundance over time (excluding 4 dpi, where variance in the uninfected samples appears to influence significance) (Fig. 4B).