Since time immemorial, mankind has been ravaged by various diseases. If it was the plague & cholera in the medieval times, it was Malaria, Tuberculosis & Influenza which caused & are still causing widespread havoc in the century. With time, newer diseases such as malaria, tuberculosis and certain drug resistant strains such as Ebola, Lassa fever, Hanta Virus and HIV have come into existence. One that stands apart due to its certain facility, global spread & its capacity at striking at the very roots of human civilization is AIDS. In a very short span of 2 decades, AIDS has spread its tentacles far & wide & is taking a heavy toll of human lives & is expected to be the single biggest killer in the near future.