Detection of GBV-C RNA and TTV DNA in serum samples from patients with systemic sclerosis (SSc), rheumatoid arthritis (RA), and osteoarthritis (OA), and in volunteer blood donors
| Patients with SSc (n=84) (%) | Patients with RA (n=41) (%) | Patients with OA (n=43) (%) | All patients (n=168) (%) | Blood donors (n=122) (%) | |
| GBV-C RNA | 4 (5) | 0 (0) | 2 (5) | 6 (4) | 5 (4) |
| TTV DNA | 10 (12) | 9 (22) | 3 (7) | 22 (13) | 16 (13) |