Conclusion MB P viral inactivation of RBC is safe and effective.

Results All of 200 monovalent pools passed the test for inactivation before preparation of final bulk. The higher content of HA in monovalent pools could affect viral inactivation.

Specific transfer factor of subtype H5N1 avian influenza virus which has significant synergistic effect to avian viral inactivation vaccine and the effect is better by mouth than by injection.