TABLE 5.

Serum vibriocidal titers of convalescent sera from patients infected with V. cholerae O139 measured before and after absorption with CPS or treatment with 2-ME

Patient	Vibriocidal titera
	Untreated	CPS absorbed	2-ME treated
SK 391-2	3,200	<50	<50
SK 395-2	1,600	<50	<50
SK 428-2	800	<50	<50
SK 456-2	400	<50	<50
SK 458-2	3,200	<50	<50
SK 494-2	100	<50	<50
SK 504-2	400	<50	<50
SK 522-2	1,600	<50	50
SK 577-2	1,600	<50	<50
SK 591-2	1,600	<50	<50
SK 597-2	800	<50	<50
SK 599-2	3,200	<50	<50
SK 622-2	400	<50	50
SK 639-2	400	<50	400
SK 646-2	3,200	<50	<50
SK 720-2	1,600	<50	<50
SK 741-2	800	<50	<50
SK 749-2	>6,400	50	100
SK 755-2	1,600	<50	200
SK 760-2	1,600	<50	50

^aEach vibriocidal assay was performed with twofold serially diluted tested serum starting from a 1:50 dilution and using V. cholerae O139 SPH1168 as the target strain.