ΐΦΜμΜΓappΟΒΤΨ

1 EXHIBIT 10.6 EMPLOYMENT AGREEMENT THIS AGREEMENT is entered into as of September 29, 1999, by and between WILLIAM D. YOUNG (the "EXECUTIVE") and VIROLOGIC, INC., a Delaware corporation (the "COMPANY"). 1. DUTIES AND SCOPE OF EMPLOYMENT. (a)...