Dengue fever is serious threat in Sri Lanka
                                
                                
                                    (Newser) -
                                    There's serving your audience, and then there's this: As Sri Lanka marked National Dengue Week in April, its Mawbina newspaper put out editions that were mosquito-repellant—and those editions sold out by 10am, marking a whopping 30% spike in circulation, reports  IFLScience . The papers featured pull-out ads soaked...