Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13567-018-0553-7/MediaObjects/13567_2018_553_Fig4_HTML.png)
PCR data for the presence of Map in feces for all Map-exposed animals by weeks post-inoculation (wpi), including 4 (A), 12 (B), 20 (C), and 28 (D). Feces collected before inoculation and then at 2-week intervals following inoculation until euthanasia, as described above. Data are shown as positive (+, light grey) or negative (−). Time points not measured are marked N/A and shaded dark grey.