TABLE 2.

Depletion of V3-specific antibodies from immune sera^a

Serum	% Depletionb with peptide:
	Bx08-1	R21
Bx083 years	100	—c
Bx261.5 years	98	94
Bx171.5 years	—	96

^aAntibodies captured on V3 peptide-coated plates and thus removed from the sera were detected by ELISA. The depletion was monitored by the decrease in OD_450–650 through the successive passages. 

^bCalculated for the lowest dilution of serum tested (1/20) as 100 − [100 × (OD_450–650 at last passage/OD_450–650 at first passage)]. 

^c—, no binding to the V3 peptide was detected.