CEACAM6 and infection: For example,Figure 2A shows a representative plot of SARS-CoV-2 infected hAEC-ALI cells stained for CEACAM6 and acetylated alpha-tubulin 72 h post infection.Figure 2A (left panel) shows all cells, with ciliated cells (acetylated tubulin high) representing 30% of the population.Figure 2A (right panel) shows the same sample after gating for SARS-CoV-2 positive cells, with ciliated cells now making up 70% of infected cells.