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| Serum source | No. positive/no. examined (%) | 95% confidence interval, %* | Maximum titer |
|---|---|---|---|
| HIV-positive persons | 14/70 (20) | 11–31 | 400 |
| Blood donors | 3/30 (10) | 2–26 | 200 |
| Persons with animal exposure | 5/15 (33) | 11–61 | 400 |
| Total | 22/115 (19) | 12–28 | 400 |
*95% Clopper-Pearson confidence interval for binomial counts.
