TABLE 1.
Frequency distribution of C. difficile toxin profiles by sourcea
| Toxin profile | No. (%) of patients |
||
|---|---|---|---|
| Symptomatic patientsb |
Asymptomatic patients with TCDc (n = 76) | ||
| HA-CDI (n = 96) | CA-CDI (n = 152) | ||
| A+, B+, CDT+ | 4 (4.2) | 7 (4.6) | 3 (4.0) |
| A+, B+, CDT− | 83 (86.5) | 139 (91.4) | 71 (93.4) |
| A−, B+, CDT+ | 1 (1.0) | 2 (1.3) | 0 (0.0) |
| A−, B+, CDT− | 1 (1.0) | 1 (0.7) | 1 (1.3) |
| A−, B−, CDT+ | 0 (0.0) | 0 (0.0) | 1 (1.3) |
a
HA, health care associated; CA, community associated; CDI, C. difficile infection; TCDc, toxigenic C. difficile colonization.
b
Nontoxigenic (A−, B−, CDT−) C. difficile isolates were recovered from seven HA-CDI patients and three CA-CDI patients.