Structural and functional characterization of nanobodies that neutralize Omicron variants of SARS-CoV-2 by Cornish, K, Huo, J, Jones, L, Sharma, P, Thrush, JW, Abdelkarim, S, Kipar, A, Ramadurai, S, Weckener, M, Mikolajek, H, Liu, S, Buckle, I, Bentley, E, Kirby, A, Han, X, Laidlaw, SM, Hill, M, Eyssen, L, Norman, C, Le Bas, A, Clarke, J, James, W, Stewart, JP, Carroll, M, Naismith, JH, Owens, RJ