Research in the humanities and social sciences (HSS), which is regularly asked the question of its "usefulness", has been massively mobilized in the first part of the year 2020, both by the media and institutions. It has shown itself to be highly responsive, adapting its schedules and objectives, and modifying its intervention formats (webinars, distance learning courses). It was much present, despite the inequalities generated by the lockdown, particularly in terms of gender. The aim of this work is to offer the reader an analysis mobilizing the work of the SHS as a whole. Without claiming to be exhaustive, it weaves the threads, through the questions it addresses, from one discipline to another, composing a whole in which the social scien...