The thing about an infectious disease is that risk shifts as the epidemic plays out. People offering a facile understanding of “relative risk” - that the relative risk for younger people is low - are using concepts from chronic disease and don’t even realize. 1/ https://twitter.com/gregggonsalves/status/1386307975829094404

And then to add insult to injury, accuse infectious disease epidemiologists of either not understanding, or purposefully obfuscating the idea that different people have different risk. 2/

Which is, like, always true. But with an infectious disease that shit can change over time because of changes in the uneven distribution of prevalence over time, the uneven distribution of access to health services, because the thing itself might be mutating, etc. 3/