HIV-positive individuals from Southern African countries are increasingly travelling to Botswana -- the only nation in the region that provides antiretroviral therapy through its public health service -- in search of treatment, the Financial Times reports. Botswana, which has the world's highest HIV infection rate, with 38.5 percent of people between the ages of 14 and 49 believed to be HIV-positive, began offering treatment this year through a partnership with drug maker Merck and the Bill & Melinda Gates Foundation.