Figure 4
From: Effects of Low-level Brodifacoum Exposure on the Feline Immune Response

Brodifacoum- and sham-treated cats have similar delayed-type hypersensitivity (DTH) responses. Mean DTH score (scale: 0–5) for cats in brodifacoum and sham bait treated groups. PBS = vehicle control. Ovalbumin (OVA) concentration decreased to 0.25 mg/ml on weeks 6 and 9.