Causes

• Rubella
  Rubella
  Rubella, commonly known as German measles, is a disease caused by the rubella virus. The name "rubella" is derived from the Latin, meaning little red. Rubella is also known as German measles because the disease was first described by German physicians in the mid-eighteenth century. This disease is...
  
  
• Cat scratch fever
  Cat Scratch Fever
  Cat Scratch Fever is an album by Ted Nugent released in 1977, as well as the name of the album's title song. "Death By Misadventure" recounts the death of Brian Jones of the Rolling Stones. Guitarist Derek St. Holmes came back during this album after he left...
  
  
• Leukemia
  Leukemia
  Leukemia or leukaemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Leukemia is a broad term covering a spectrum of diseases...
  
  
• Infectious mononucleosis
  Infectious mononucleosis
  Infectious mononucleosis is an infectious, widespread viral...
  
  
• Lymphoma
  Lymphoma
  Lymphoma is a cancer in the lymphatic cells of the immune system. Typically, lymphomas present as a solid tumor of lymphoid cells. Treatment might involve chemotherapy and in some cases radiotherapy and/or bone marrow transplantation, and can be curable depending on the histology, type, and stage...
  
  
• Streptococcal pharyngitis
• Viral respiratory infection
• Toxoplasmosis
  Toxoplasmosis
  Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. The parasite infects most genera of warm-blooded animals, including humans, but the primary host is the felid family. Animals are infected by eating infected meat, by ingestion of feces of a cat that has itself...
  
  
• Tuberculosis
  Tuberculosis
  Tuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...
  
  
• Rhabdomyosarcoma
  Rhabdomyosarcoma
  A rhabdomyosarcoma is a type of cancer, specifically a sarcoma , in which the cancer cells are thought to arise from skeletal muscle progenitors. It can also be found attached to muscle tissue, wrapped around intestines, or in any anatomic location...
  
  
• Neuroblastoma
  Neuroblastoma
  Neuroblastoma is the most common extracranial solid cancer in childhood and the most common cancer in infancy, with an annual incidence of about 650 cases per year in the US , and 100 cases per year in the UK . Close to 50 percent of neuroblastoma cases occur in children younger than two years old...
  
  
• Lymphadenitis
• Kawasaki disease
  Kawasaki disease
  Kawasaki disease , also known as Kawasaki syndrome, lymph node syndrome and mucocutaneous lymph node syndrome, is an autoimmune disease in which the medium-sized blood vessels throughout the body become inflamed. It is largely seen in children under five years of age...
  
  
• Kikuchi-Fujimoto disease