Serological cross-reactivity between Crimean-Congo haemorrhagic fever virus and Nairobi sheep disease virus glycoprotein C by Maze, EA, Booth, G, Limon, G, Belij-Rammerstorfer, S, Tchakarova, SR, Alexandrov, T, Browning, C, Wilsden, G, Ludi, AB, Charleston, B, Lambe, T