<p>Most compelling, and beneficial, was transfer of immunity against pandemic H1N1 infulenza in P2. The haploidentical donor had been electively vaccinated against the strain before leukapheresis harvest of peripheral blood lymphocytes. The transduced and CD34 enriched populations exhibited specific IFNγ responses against HI1N1 compared to non-stimulated control cells. Samples collected 150 days after donor lymphocyte infusion from the patient showed similar H1N1 specific IFNγ responses, which coincided with clearance of persistent H1N1 respiratory infection. These responses were still detectable after 350 days.</p
