Influenza Vaccine Post Allogeneic Transplant

You may be eligible if

• Patient Population
• * HSCT recipients who are greater than 60 days post transplant.
• * Age 6 months and older who are greater than 60 days post post allogeneic hematopoietic cell transplant
• * Show neutrophil recovery, platelet count \> 50,000/mm3 (may be transfused), no known disease relapse
• * No history of previous allergic reaction to influenza vaccine, known egg allergy or Guillan-Barre Syndrome
• * No flu vaccine in previous 4 months, no Campath in previous 6 months, no intravenous immune globulin (IVIG) in previous 3 months
• Controls:
• * Age 18 to 50 years
• * No history of previous allergic reaction to influenza vaccine, known egg allergy or Guillan-Barre Syndrome
• * No flu vaccine in previous 4 months