TABLE 1.

Culture results from male C3H/HeN mice infected in the meatus urethra with various doses of C. trachomatis MoPn

Dose/mouse	No. of mice	% Mice with at least one organ posc	Urethraa		Bladdera		Epididymidesa		Testesa
			% Pos	IFU ± 1 SD	% Pos	IFU ± 1 SD	% Pos	IFU ± 1 SD	% Pos	IFU ± 1 SD
0	10	0	0	<1.7b	0	<1.7	0	<1.7	0	<1.7
101	5	0	0	<1.7	0	<1.7	0	<1.7	0	<1.7
103	10	20	20	6.12 ± 6.67	0	<1.7	10	0.3 ± 0.7	0	<1.7
104	5	40	40	6.66 ± 6.95	40	2.70 ± 2.8	40	2.10 ± 2.37	40	2.18 ± 2.41
105	10	70	70	6.20 ± 6.46	60	3.76 ± 4.23	70	2.21 ± 2.37	60	1.48 ± 1.50
106	5	100	100	6.11 ± 6.25	80	5.25 ± 5.57	60	2.03 ± 2.29	20	1.60 ± 1.90
107	10	100	100	5.37 ± 5.65	70	6.20 ± 6.69	70	2.50 ± 2.75	50	1.34 ± 1.40

^aMean log₁₀ IFU recovered per organ ± 1 standard deviation.

^bLog₁₀ 50 = 1.7 (limit of detection).

^cPos, positive.