Researchers from the University of Georgia, George Washington University and Johns Hopkins University received a 5-year, $1.55 million grant from the NIH's National Institute of General medical Sciences to use Twitter to study why people refuse vaccines. The team will compare billions of tweets against results from traditional surveys about how people make decisions regarding vaccines. Their goal is to use social media in tandem with (or instead of) traditional research methods like surveys, which can be both expensive and time-consuming. More