2.1.1.2. Hematological malignancies, solid tumors, bone marrow deficiencies, hematopoietic stem cell transplantation and organ transplants. In patients with these diseases and conditions, some reports of fatal cases of severe RSV infection have appeared. For infants and children 24 months of age at the beginning of the RSV season having the following conditions and diseases, the prevention of severe RSV disease using Palivizumab may be considered