Patent ID: 8852915

Claim:
A method for stably storing a retrovirus, comprising: (1) contacting a solid support on which a substance having a retrovirus-binding activity is immobilized with a retrovirus producer cell culture supernatant which contains the retrovirus; (2) removing the retrovirus producer cell culture supernatant in step (1) from contact with the solid support; (3) after removal of the retrovirus producer cell culture supernatant, contacting the solid support on which the retrovirus is bound via the substance having a retrovirus-binding activity immobilized on the solid support with a solution containing at least one substance selected from the group consisting of gelatin, albumin and lactose; and (4) storing the retrovirus, bound to the solid support via the substance having a retrovirus-binding activity immobilized on the solid support obtained in step (3), in contact with the solution and in an unfrozen state for a period of 24 hours or more.