Before revision:  In this review, we present an overview of recent studies using Machine Learning and, more broadly, Artificial Intelligence, to tackle many aspects of the COVID-19 crisis  at different scales including molecular, clinical, and societal applications .
After revision:  In this review, we present an overview of recent studies using Machine Learning and, more broadly, Artificial Intelligence, to tackle many aspects of the COVID-19 crisis . We have identified applications that address challenges posed by COVID-19 at different scales including molecular, clinical, and societal applications .