India holds its first test of AIDS vaccine on humans in a groundbreaking clinical trial on 34 adult volunteers at the country's National AIDS Research Institute. A vaccine remains an elusive panacea especially for developing countries that face gargantuan challenges in availing drugs and combating the HIV's arcane capacity to mutate. India?s Health minister Anbumani Ramadoss claims that, while developing an anti-AIDS vaccine is the biggest scientific challenge today, it also is "one of the most urgent health needs." The initiative follows similar human trials of vaccine tests in the United States, Europe, Africa and South America. (Source: India begins AIDS vaccine trials on humans/Reuters)