By HENRY NIMAN, PhD (RECOMBINOMICS.COM) — The mutations appear to occur sporadically and spontaneously. To date, no links between the small number of patients infected with the mutated virus have been found and the mutation does not appear to spread.
The above comment from the WHO briefing on D225G (aka D222G) in Norway describes how the “mutations appear”. However, this appearance is based on an outdated view of influenza evolution, which maintains that all newly acquired drift “mutations” are based on copy errors. For D225G, this would require the same copy error to occur again and again on multiple backgrounds, which simply is not reality based.