“In a large study of nearly a million girls in Denmark and Sweden, the human papillomavirus [HPV] vaccine was not linked to short- or long-term health problems,” Reuters reports. “Previously, isolated incidents of blood clots or other problems had been pegged to the vaccine, but this large new study did not find any negative health consequences, researchers said,” the news agency writes, noting the report is published in BMJ. “More than 100 million doses have been administered worldwide since the first HPV vaccine was approved in 2006,” Reuters adds (Doyle, 10/23).