1051
Leishmania donovani , an obligate intracellular parasite of genus Leishmania causes visceral leishmaniasis that affects millions of people worldwide , especially in the Indian subcontinent and East Africa .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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