2.21 Procurement of Covid-19 vaccines: why were legal liabilities transferred to the public sector? _ Jean-Sébastien Borghetti, Duncan Fairgrieve, Richard Goldberg, Geraint Howells, Piotr Machnikowski, Eleonora Rajneri, Peter Rott, Marcus Pilgerstorfer, Marta Santos Silva, Vibe Ulfbeck,