TABLE 2.

Serological results over time from patient 2^a

Time of serum sample	RF (IU/ml)	Titer obtained with indicated test					CIEP result (no. of bands/titer)	Lateral flowc
		RB	SATb		Coombs IgG
			pH 7.2	pH 5.0	pH 7.2	pH 5.0		IgG	IgM
25 May 1999	Neg	Neg	40	160	1,280	2,560	Neg	1±	Neg
7 August 1999	132	4	160	2,560	2,560	5,120	3/8	2+	2+
Antibiotic therapy
19 August 1999	2+	8	320	5,120	10,240	10,240	4/32	2+	2+
10 September 1999	2+	16	640	40,960	40,960	40,960	5/64	3+	3+
18 October 1999	2+	16	1,280	81,920	81,920	81,920	5/64	3+	3+
Liver resection (2 November 1999)
6 mo	Neg	8	320	5,120	20,480	40,960	2/16	ND	ND
1 yr	Neg	4	80	640	10,240	10,240	2/8	1+	Neg
2 yr	Neg	4	80	320	5,120	10,240	2/4	ND	ND
3 yr	Neg	2	40	320	5,120	10,240	1/1	Neg	Neg
4 yr	Neg	2	40	320	5,120	10,240	1/1	ND	ND

^aAbbreviations: Neg, negative; ND, not done.

^bThe SAT at pH 7.2 was done with milk ring test antigen (PBS); the SAT at pH 5.0 was done with Brucellacapt antigen (Vircell).

^c1+, weak staining; 2+, moderate staining; 3+, strong staining.