Fig. 3

Alignment of IBV-HA samples 2, 11, 14, 16, 17, 18, 22, 23 and 24 against the last IBV vaccine strain (B/Colorado/06/2017) and the current one (B/Washington/02/2019). Dots denote conservation while substitutions are highlighted by showing the new amino acid. Dashes denote deletion. A single question mark (?) suggest an ambiguous base was present in this codon hence hampering translation. Multiple question marks denote a scaffold