HP and Menkes disease: Using nested PCR technology, specific DNA targets for Bb were detected in dermatological specimens from 10/14 (71%) MD subjects; specific Hp DNA targets were detected in dermatological specimens from 12/14 (86%) MD subjects; specific DNA targets for both Bb and Hp were detected in dermatological specimens from 8/14 (57%) MD subjects; and 0/14 (0%) were negative for both Bb and Hp.