Table 3.

Correlation Between Natural Killer Cell CD107a, CD16, and Interferon γ Expression in Response to Plate-bound Ebola Virus Glycoprotein (GP) Plus Post–Dose 2 (Visit 2) Serum and Ebola GP–Specific Pseudovirion Virus Neutralizing Antibody Titers According to Vaccine Regimen Group^a

Visit 2 by Group	R 2 (P Value)
	CD107a (%)	CD16 (MFI)	IFN-γ (%)
Group 1 (d 50)	0.0001 (.97)c	0.006 (.79)c	0.425 (.01)
Group 2 (d 78)	0.063 (.36)c	0.034 (.51)c	0.089 (.28)c
Group 3 (d 50)	0.446 (.02)	0.331 (.050)	0.352 (.04)
Group 4 (d 78)	0.485 (.006)	0.548 (.003)	0.503 (.005)
Group 5 (d 36)	0.182 (.29)c	0.306 (.16)c	0.380 (.10)c

Abbreviations: IFN, interferon; MFI, mean fluorescence intensity.

^aTiters determined previously by Milligan et al l [21].

^b R ² values determined by means of linear regression. Significance was defined as P < .05.

^cNonsignificant correlations.