infectious diseaseScienceThe Risk That Ebola Will Spread to Uganda Is Now ‘Very High’By Megan MolteniScienceNo, the Caravan's Migrants Don't Have Leprosy or SmallpoxBy Adam RogersScienceDogs Can Sniff Out Malaria And Other DiseasesBy Megan MolteniScienceAn Ebola Outbreak in a War Zone Is About as Bad as It GetsBy Megan MolteniIdeasThe Hajj Is a Perfect Laboratory for Disease Warning SystemsBy Maryn McKennaScienceWe Have No Idea How Bad the US Tick Problem IsBy Megan MolteniIdeasThe Catch-22 of Mass Prescribing AntibioticsBy Maryn McKenna