infectious diseaseScienceWe Still Don’t Know How Well Covid Vaccines Stop TransmissionBy Megan MolteniIdeasWhite Nationalism Is Far Worse Than a 'Disease'By C. Brandon OgbunuIdeasIf the Virus Slows This Summer, It May Be Time to WorryBy Roxanne KhamsiIdeasThey Say Coronavirus Isn't Airborne—but It Is Borne by AirBy Roxanne KhamsiScienceTraveling for the Holidays? Here's How to Not Get SickBy Michele Cohen MarillScienceHow Measles Leaves Kids Exposed to Other DiseasesBy Megan MolteniScienceThe Meat-Allergy Tick Also Carries a Mystery Killer VirusBy Megan MolteniScienceMeasles Had Been Eliminated. Now It’s Nearly a Daily ThreatBy Megan MolteniScienceFighting Measles, LA Pulls a Classic Move: QuarantineBy Adam RogersScienceNew York's Vaccine Order Shows How Health Laws Are Failing UsBy Megan MolteniScienceOne Couple’s Tireless Crusade to Stop a Genetic KillerBy Kelly ClancyScienceThe DRC's Ebola Outbreak Is an End-of-Year NightmareBy Megan MolteniScienceThe 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