TABLE 1.

Number of patients with significantly elevated dot immunobinding or Widal agglutination titers

Group	No. of sera with positive result when tested with indicated antigen in dot immunobinding (titer ≥ 20,000)						No. of sera with positive result in indicated Widal test
	n	ST O-HSA		ST LPS		ST O (100 ng)	n	Widal H		Widal O
		100 ng	10 ng	100 ng	10 ng			≥1/80	≥1/160	≥1/80	≥1/160
Typhoid fever	40	28	12	38	34	16	35	27	26	25	22
Nontyphoid fevers	22	2a	1b	1a	1a	0d	22	7f	3a	13	6g
Healthy controls	17	0a	0c	0a	0a	0g	NDh	ND	ND	ND	ND

^aSignificantly different from patients with typhoid fever (P < 0.0001; Fisher's exact test).

^bSignificantly different from patients with typhoid fever (P = 0.0226; Fisher's exact test).

^cSignificantly different from patients with typhoid fever (P = 0.0114; Fisher's exact test).

^dSignificantly different from patients with typhoid fever (P = 0.0005; Fisher's exact test).

^eSignificantly different from patients with typhoid fever (P = 0.0012; Fisher's exact test).

^fSignificantly different from patients with typhoid fever (P = 0.001; Fisher's exact test).

^gSignificantly different from patients with typhoid fever (P = 0.014; Fisher's exact test).

^hND, not determined.