Figure 6From: Chlamydophila spp. infection in horses with recurrent airway obstruction: similarities to human chronic obstructive diseaseImmunofluorescence of equine lung tissue in RAO. In horses with RAO, the abundance of chlamydial inclusion bodies (red spots) in bronchiolar epithelial cells (stained green with an anti-cytokeratin pan antibody) and macrophages varies from high to low (compare Figure 7) (original magnification 40×).Back to article page