Twenty-nine codon-sites under positive selection in the G gene of HRSVA including nine flip-flop sites (shown in Roman numerals) that were mapped in viral genealogy shown in Figure 1A, using three methods (Bayes factor >20 and <i>p</i>-value<0.05).

§Fr- Forward replacements/Br – Backward replacements. Sites detected by three methods are indicated by *.