Where will the next pandemic come from? Likely from bats.

Fighting emerging infectious diseases costs billions of dollars, as the AIDS pandemic and the recent Ebola epidemic in West Africa attest. So researchers from New York City-based nonprofit EcoHealth Alliance set out several years ago to try to pinpoint where and how future pandemics might erupt. Analyzing a database of wildlife species and viruses known to infect mammals and people, they calculated how many unknown viruses may be out there, who carries them and where...