The presence of
near or inside the cultured parietal cell. Cultured parietal cells were inoculated with live H. suis at an MOI of 10 for 6 h, and a close relationship between H. suis (green) and parietal cells (red) could be observed. Cell nuclei were stained by DAPI (blue). Representative fluorescence micrographs were shown. Scale bars: 50 µm. MOI: multiplicity of infection.