Objective To validate and evaluate the feasibility of inactivation / removal of viruses in medical collagen repair membrane by hydrogen peroxide solution, low p H incubation and γ-irradiation. Methods Vesicular stomatitis virus(VSV), pseudorabies virus(PRV), respiratory enteric orphan virus Ⅲ(Reo 3)and porcine parvovirus(PPV)were selected as indicator viruses. Vero and PK-15 cells were used for the evaluation of virus proliferation and infection. The virus titer was determined by Karber method. The bovine t...