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Officials have registered more than 230 , 000 cases of HIV , though health experts say the actual number of HIV infections tops 1 million .
 Officials, health experts
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Officials, health experts