"QR" (or "quick response") codes store information in the form of a two-dimensional square barcode. QR codes direct users to mobile websites or videos, store text or contact information, call a phone number, and/or send text messages and emails.
People interact with QR codes by scanning the barcode with their mobile phone camera. A QR reader application is needed to detect the QR code. You can download a QR reader application to your smartphone through a mobile application store. It is possible to track when, where, and how many people are scanning QR codes with Google Analytics, Bit.ly, and other services.
Many commercial companies use QR codes as part of their marketing campaigns. At AIDS.gov, we are exploring the use of QR codes on brochures, posters, postcards, or business cards to:

AIDS.gov mobile site features HIV/AIDS basic information and in a mobile friendly format.


The AIDS.gov HIV/AIDS Prevention & Services Provider Locator helps users locate HIV/AIDS related clinics in their area.


QR codes allow some flexibility for branding.
