My understanding is that variant monitoring in Africa, generally, is very low – even though it's supposedly quite good in South Africa. And in enumerating poss

My understanding is that variant monitoring in Africa, generally, is very low – even though it's supposedly quite good in South Africa. And in enumerating possibilities, the hypothetical reckless experiment I described might also be simulated by other unwise medical practices. For example, what if you had a ward of immunocompromised patients that shared poor ventilation with a next-door quarantine/COVID-treatment area? That'd also risk concentrating multiple variants into an area where co-infection, and long incubation periods for cross-hybridization & accrued mutation, could happen. Long unmonitored transmission chains in the community, especially in populations where illness is barely noted (like young & partially-immune), would also have eventually have the same effect as those other accelerated, worst-case situations.