Two postdoctoral fellow positions are available immediately in Professor Paul Zhou’s laboratory at the Institute Pasteur of Shanghai, Chinese Academy of Sciences to work on a newly funded research project - developing humanized mouse model for HIV infection, pathogenesis and vaccine evaluation. Persons with relevant Ph.D. degree, strong research experience in immunology, especially in the field of developmental immunology and/or anti-viral immunity, and long-term interest in laboratory research are encouraged to apply. Salary and benefit will commemorate with experience. Initial appointment will be two years, but it is renewable based upon performance. Interested person should send curriculum vitae with names, telephone numbers and e-mail address of three references to Dr. Paul Zhou at the following e-mail address: blzhou@sibs.ac.cn before November 15, 2007.