The ongoing COVID-19 pandemic has brought a series of unprecedented challenges to the public transport sector. Public transport authorities, operators and users are faced with new constraints and responsibilities and can rely on a still limited and evolving body of scientific knowledge to take informed decisions. This working paper presents a review of the international academic literature on the way in which public transport operations and use have been affected by the COVID-19 pandemic. Collecting academic articles belonging to multiple disciplines, the review presents a series of findings and recommendations pertaining to the new coronavirus’ routes of transmission (Chapter 2), the challenges emerging as a consequence of the pandemic (Chapter 3) and the related recommendations (Chapter 4).