Using cellphone data to study the spread of cholera

While cholera has hardly changed over the past centuries, the tools used to study it have not ceased to evolve. Using mobile phone records of 150,000 users, an EPFL-led study has shown to what extent human mobility patterns contributed to the spread of a cholera epidemic in Senegal in 2005. The researchers' findings, published in the Proceedings of the National Academy of Sciences, highlight the critical role a mass gathering of millions of pilgrims played in spreading of the disease, and how me