1109
We enrolled 253 HIV - antibody positive heroin addicts without HIV - related disease ( n = 81 ) or with persistent generalized lymphadenopathy ( n = 172 ) in a prospective study to evaluate clinical progression to AIDS related complex ( ARC ) or AIDS and to identify factors of possible prognostic relevance .
 GENE: HIV - antibody
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: HIV - antibody 
Answer:
 GENE: HIV - antibody