Del. doctor indicted on 471 counts in child sex abuse scandal

“These were crimes committed against the most vulnerable among us - those without voices,’’ Biden said.

There have been other cases around the country involving multiple victims, he said, but “I know of no other that has this many victims.’’

The charges against Bradley include rape, sexual exploitation of a child, unlawful sexual contact, continual sexual abuse of a child, assault, and reckless endangering.

Bradley, who was arrested in December and initially charged with 29 felony counts for allegedly abusing nine children, is being held with bail set at $2.9 million. The state Board of Medical Practice permanently revoked his medical license last week.

Bradley’s lawyer, Eugene Maurer, did not immediately return telephone messages.

Authorities would not say whether they think Bradley videotaped all of his alleged assaults or whether there may be more victims.

Biden encouraged parents and alleged victims, “regardless of age or gender,’’ to contact prosecutors.

After years of suspicions among parents and questions about his strange behavior from colleagues, Bradley was arrested after a 2-year-old girl told her mother the doctor hurt her in December when he took her to a basement room of his office after an exam.