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Because of the effect on immune cells ( especially lymphocytes ) , chemotherapy drugs often find use in a host of diseases that result from harmful overactivity of the immune system against self ( so-called autoimmunity ) .
 disease: autoimmunity
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 disease: autoimmunity