T Cell Leukemia Lymphoma Virus Antigens Human (HTLV-1) is a retrovirus that causes a type of cancer known as adult T-cell leukemia/lymphoma. This devastating disease affects the immune system, specifically the white blood cells known as T cells. The virus primarily targets these cells, leading to a variety of symptoms and complications. Synonyms for this complex term can include HTLV-1, T-cell leukemia/lymphoma virus, and human retrovirus type 1 (HRV-1). These terms all refer to the same virus and can be used interchangeably. Understanding the various synonyms is crucial in the medical field to ensure accurate communication and research related to this life-threatening virus.