2519
A 45 - year - old male patient who was on treatment with multiple second - line anti - tuberculous drugs including linezolid and ethambutol for extensively drug - resistant tuberculosis ( XDR - TB ) presented to us with painless progressive loss of vision in both eyes .
 Chemical: linezolid; Chemical: ethambutol; Disease: extensively drug - resistant tuberculosis; Disease: XDR - TB; Disease: loss of vision
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: linezolid; Chemical: ethambutol; Disease: extensively drug - resistant tuberculosis; Disease: XDR - TB; Disease: loss of vision