THE GUARDIAN – A “perfect storm” of urban change that began in 1920s Kinshasa led to the catastrophic spread of HIV across Africa and into the wider world, according to scientists who used genetic sequencing and historical records to trace the origins of the pandemic. Though the virus probably crossed from chimpanzees to humans in southern Cameroon years earlier, HIV remained a regional infection until it entered the capital of what is now the Democratic Republic of the Congo Continue