Table 1. Mean pH (± standard error of mean) of endosomes in concentric shells of mock, WT, and ΔdotA C. burnetii-infected HeLa cells.

Days post infection	Area of cell	pH
		Mock	WT	ΔdotA
2	Shell 1	5.55±0.06	5.51±0.08	5.50±0.09
	Shell 2	5.23±0.05	5.31±0.08	5.07±0.06
	Shell 3	5.14±0.07	5.26±0.09	4.99±0.05
	Core	4.81±0.05	5.20±0.09	4.83±0.05
3	Shell 1	5.51±0.06	5.73±0.08	5.54±0.07
	Shell 2	5.18±0.05	5.68±0.10	5.30±0.06
	Shell 3	5.01±0.06	5.53±0.11	5.09±0.06
	Core	4.76±0.04	5.58±0.10	4.81±0.05