> So very high spread in a local area does not necessarily mean it will spread rapidly in other settings (especially since Delta seems so good at outcompeting a

> So very high spread in a local area does not necessarily mean it will spread rapidly in other settings (especially since Delta seems so good at outcompeting all these variants). In South Africa omicron has replaced delta. Why should we expect delta to dominate omicron elsewhere? Of course omicron may fail to be the dominant variant if there is a "better" one, but it seems more likely than not that delta will be replaced.