One MORE time. People who live in those places don’t take the drugs.
You are completely incorrect.
https://malariajournal.biomedcentral.com/articles/10.1186/1475-2875-11-422
“A distinction should be made between formal policy (which is currently sequential deployment virtually everywhere) and the pragmatic realities of different countries and regions. Distribution of designated ACT through the formal health sector is the official policy in most countries.”
There is a whole body of literature attempting to find the best method of prophylaxis for the whole population. As above the official policy is most often sequential deployment to the entire population in an endemic area. The literature examines whether rotating the anti malarials used will hinder development of resistance.
One MORE time. People who live in those places don’t take the drugs.
Well they certainly do in South America, and that was back in the 60’s.
They have gene selection which reduces the malarial infection rate? Blood disorders which are acute for some carriers of the mutation?