8. Positive serology for HIV or Hepatitis B Virus (HBV) surface antigen (HBsAg ) . If negative for HBsAg but HBcAb positive and HBsAb negative, a HB DNA test will be performed and if positive the subject will be excluded. Note: If HBcAb positive and HBsAb positive, which is indicative of a past infection, the subject can be included 9. Active Hepatitis C (RNA positive serum) . If RNA positive result would exclude the patient from the trial in cases of patients with positive serology for Hepatitis C Virus (HCV). If the load ( RNA ) were HCV negative patients could be included in the study.