@BowsacNoodle @Zardoz @Shadowman311 And these people have no explanation worth anything about how smallpox and rinderpest (measles was a zoonotic jump from it ~500-1500 AD) were wiped off the face of the earth.
Smallpox used to kill 30% of populations already culled by the first wave(s).
In a way, I'm glad I'm old, because my parents members of the early Silent Generation. They know in their bones all sorts of harsh realities from pre-antibiotic infections, and my father's life was saved with first generation, an injection in the butt every four hours penicillin. Ditto a cultural Boomer friend who's mother was completely freaked out because rheumatic fever had been a death sentence (actually, I think she might have gotten a next generation form, but they did dose her up to the gills).
As well as the realities of hard times, the Great Depression and WWII. Not quite obsessed with food, but it is very very important to them, and reading between the lines while they grew up on farms, they must have had malnourished peers. Per the USDA that was a quarter of the population before WWII, when the draft confirmed their estimates.