According to researchers in the U.S.A, the diagnosis of the deadly but treatable HIV virus fell by almost a third in the country dropping to 30 percent between the years 2002 and 2011.
NBC News noted that lesser people in all the groups tested positive for the HIV virus that causes AIDS. The exception in certain groups were gay and bisexual men. According to colleagues and the Anna Satcher Johnson of the Centers for Disease Control and Prevention, “During 2002-2011, 493,372 persons were diagnosed with HIV in the United States. The annual diagnosis rate decreased by 33.2 percent, from 24.1 per 100,000 population in 2002 to 16.1 in 2011.” CDC also mentioned that over 1.1 million people in the U.S are infected with HIV. Among those people, 16 percent don’t know it since they haven't been tested.

According to Reuters, the report also noted that, "Among men who have sex with men, unprotected risk behaviors in the presence of high prevalence and unsuppressed viral load may continue to drive HIV transmission."

With comparison to other countries worldwide, the epidemic of AIDS drop in the U.S is in sync with the global turndown.
The United Nations announced last Wednesday that there were over 2 million new HIV infections globally in 2013, which is 38 percent less than the statistics from 2001.