TABLE 3.

Detection of native proteins in clinical isolates and specific antibodies in sera from the corresponding CDAD patients

Patient no.	FliC		FliD
	Protein detectiona,c	Serum antibodiesb,c	Protein detection	Serum antibodies
1	+	+	+	+
2	+	++	+	+
3	+	++	+	++
4	+	++	+	+
5	−	−	−	−
6	+	++	+	+
7	+	+	+	+
8	+	−	+	−
9	+	+	+	+
10	+	++	+	+
11	+	+	+	+
12	+	++	+	+
13	+	+	+	+
14	+	+	+	+
15	+	++	+	+
16	−	++	−	++
17	+	++	+	+

^aImmunoblot detection of the native protein with the 79-685 strain recombinant protein antiserum.

^bELISA detection of antibodies directed against 79-685 recombinant protein in sera from CDAD patients.

^c+, positive; −, negative; ++, highly positive serum antibodies.