Federal health officials are revising their estimate of how many people are infected by HIV each year, and advocacy groups say the new numbers could be higher. The U.S. Centers for Disease Control and Prevention has been estimating about 40,000 new HIV cases occur in the nation each year. At a national HIV prevention conference in Atlanta this week, however, advocates claim the new estimate is 55,000 or higher. The CDC says new numbers will be official early next year.
