Not to mention that in combination with long-term, background effects that might affect immune response over generations. People in highly polluted areas might have shell-shocked immune systems ripe to be plundered by an opportunistic virus/bacteria, and people whose generation was bubble-wrapped beget kids with weak immune systems. It'd be interesting to know if the immune response difference between my generation (X), Boomers, and the older, extinct generations is less than the difference between us and Milllennials and Zs. (In other words, (human) immune systems are collapsing across the board across generations due to a combination of factors. And of course, that's discounting the presence of AIDS since at least the 1950s or 60s.)
Not to mention that in combination with long-term, background effects that might affect immune response over generations. People in highly polluted areas might have shell-shocked immune systems ripe to be plundered by an opportunistic virus/bacteria, and people whose generation was bubble-wrapped beget kids with weak immune systems. It'd be interesting to know if the immune response difference between my generation (X), Boomers, and the older, extinct generations is less than the difference between us and Milllennials and Zs. (In other words, (human) immune systems are collapsing across the board across generations due to a combination of factors. And of course, that's discounting the presence of AIDS since at least the 1950s or 60s.)