I was thinking socio-economic and transportation connectedness rather than genetic resistance. Anglo-centric Cook Islands vs. French Polynesia, for instance, an

I was thinking socio-economic and transportation connectedness rather than genetic resistance. Anglo-centric Cook Islands vs. French Polynesia, for instance, and the evolved political, economic, transportation, and health systems. It could be something as simple as incoming flights mostly originating from one of Sydney, Singapore, or Hawaii and the travel restrictions implemented at each hub. We are also maybe placing to much emphasis on zero-per-hundred-thousand compared to one-per-hundred-thousand stats.