Table 2.

. Analytical sensitivity for pool plasma samples (96 samples/pool) *

Copies of external quantification standard RNA spiked in minipools	Number positive/ number tested	Percent positive
80	10/10	100
60	10/10	100
40	10/10	100
20	10/10	100
10	9/10	90
5	8/10	80
0	0/10	0

^* External quantification standard was extracted from 9.6 mL of 96 pooled donor samples after centrifugation. Five microliters of 75‐µL nucleic acid extract was analyzed. The 95 percent detection limit was 93 copies/mL; the 50 percent detection limit was 43 copies/mL.