Advocacy may be the most powerful tool at our disposal when it comes to HIV testing.

Wednesday marks National HIV Testing Day, with the aim of educating people on testing procedures.

The initiative, a partnership between the National Association of People With AIDS (NAPWA) and the Centers for Disease Control and Prevention, began in 1995 and focuses on struggling populations and communities most affected by the disease.

Find out which states have seen the most diagnoses, according to the CDC, and how you can contribute to local organizations fighting to help stop the spread of the disease.

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New York: 201,871 Cases
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Since the beginning of the epidemic, through 2009, New York had the highest rate of AIDS cases in the United States. During that period, 201,871 New Yorkers were diagnosed with the disease, according to the Centers for Disease Control and Prevention. Help low-income residents and people who have been recently released from jail or prison and are facing HIV/AIDS when you give to VOCAL-NY. This organization provides housing and employment opportunities for those in need, among other services. Donate here.