TABLE 2.

Qualitative values for parameters of infection in rhesus macaques infected by spore aerosol exposure to B. anthracis Ames strain: pagA and bacteremia status

Quantitative assay	Animal ID	Resulta at indicated time point
		−42 days	24 h	48 h	72 h	96 h	120 h
pagA PCR	A	−	−	+	+	+*
	B	−	−	−	+	NS	+*
	C	−	−	+	+	+*
	D	−	−	+	−	NS	NS
	E	−	−	+	+	+*
Bacteremia status	A	−	−	+	−	+*
	B	−	−	+	±	NS	+*
	C	−	−	+	−	+*
	D	−	−	+	−	NS	NS
	E	−	−	+	+	+*

^aQualitative results for pagA PCR are indicated as positive (+) or negative (−). Culture results were graded as positive (+) if there were more than five colonies, negative (−) if there were no colonies, and low positive (±) if there were one to five colonies in primary phase. NS, no sample was available. Asterisks indicate the measurement at euthanasia. Measurements for postexposure time points at 2, 4, 6, and 12 h were negative for all parameters and thus were not included. Due to standard requirements for blood collection during animal studies, samples for animal D from days 6 through 9 were not available for pagA PCR. At euthanasia on day 9, animal D was found to be bacteremic.