Bats are widely recognized as the primary hosts of filoviruses, such as Ebola, yet the specific host species of ebolaviruses are not definitively known. In a study led by the University of California, Davis, and the Albert Einstein College of Medicine (Einstein), scientists have developed a new tool to narrow down potential host species of filoviruses and better prioritize wildlife surveillance. The research is part of global efforts to prevent viral spillover between animals and humans.