Table 1.

Titers of rAAV viruses and potential contaminants

Virus	rAAV titer, icu/ml	Adenovirus titer, pfu/ml	wtAAV titer, icu/ml
mOps-lacZ	1  ×  107	Undetectable	<103
mOp-gfp	4.6  ×  109	<103	<103

rAAV and wtAAV were titered by infectious center assay. For wtAAV, 1 μl of the undiluted rAAV stock was titered (pfu, plaque-forming unit). Adenovirus was titered by plaque assay using 1 μl of the undiluted rAAV stock. No infectious adenovirus was detected by serial passage cytopathic effect.