Low serum neutralization of Omicron variants a month after AZD7442 prophylaxis initiation. Issue 1 (January 2023) - de Lamballerie, Xavier; Martin-Blondel, Guillaume; Dupont, Axelle; Izopet, Jacques; Mentré, France; Kamar, Nassim; Autran, Brigitte; Paintaud, Gilles; Caillard, Sophie; le Bourgeois, Amandine; Richez, Christophe; Couzi, Lionel; et al.