Infection of bovine epithelial cells with
C. burnetii. Fluorescence microscopy images showing bovine epithelial cells infected with C. burnetii-strains NMI and NMII. Nuclei were stained with DAPI (blue), bacteria were detected with an Anti-Coxiella-Alexa Fluor® 594 labeled antibody combination (red). Microscopic pictures were taken 7 days after inoculation. White scale bars represent 50 µm length. Pictures are representative of three independent experiments.