Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1746-6148-10-121/MediaObjects/12917_2014_Article_934_Fig2_HTML.jpg)
Calf WA/B65 immunohistochemical staining using commercial monoclonal antibody to chlamydial LPS. A) Spleen – Brown intracytoplasmic labelling of activated mesothelial cells. B) Lung – Brown intracytoplasmic labelling of mononuclear cells beneath layer of fibrin in overlying pleura.