TABLE 1.

Invasion of A549 respiratory epithelial cells by GBS type III strain M781 grown at a t_d of 1.8 h with 0 or 12% DO₂

MOI	% (mean ± standard deviation) of invading GBS cells that were grown at the indicated DO2 levela		P
	0%	12%
0.1	1.8 ± 1.0	12.0 ± 5.8	0.0002
1.0	2.2 ± 0.5	9.0 ± 2.8	<0.0001
10.0	0.5 ± 0.1	2.8 ± 0.9	<0.0001

^an = 8 measurements.